In recent explosions at the Brussels airport and another at a busy subway station in the Belgian capital Tuesday at least 30 people were killed and wounded 230 others. Local mayor Francis Vermeiren confirmed the ISIS suspects checked in their explosives-packed suitcases just seconds before the atrocities. He said: ‘They came in a taxi with their suitcases, their bombs were in their bags. ‘They put their suitcases on trolleys, the first two bombs exploded. The third also put his on a trolley but he must have panicked, it didn’t explode.’ Another series of bombs and shootings inside Istanbul’s Ataturk airport killed dozens; and most recently in Fort Lauderdale, a gunman killing five before surrendering to police.
Commercial aviation plays a central role in our daily lives and is an essential part of the national economy. Total global air travel demand increased 5.9 percent year over year in 2014, and capacity increased 5.6 percent, according to the International Air Transport Association. The number of passengers are predicted to rise from 3.4 billion passengers in 2014 to 6.7 billion in 2032 to 16 billion in 2050. More than 100,000 flights take off and land every day across the world.
The high concentration of people on large airliners can result in high death rate with attacks on aircraft. This sheer number of passengers that must be screened and number of aircraft that must be secured also makes security a very difficult task. James Somerville-Smith, EMEA Channel Marketing Leader at Honeywell Security & Fire, agrees that the primary challenge for security professionals with regards to today’s rapidly expanding airports is the level of congestion: “Airports are some of the world’s busiest spaces, which can be difficult to monitor effectively.”
Another hurdle for those securing airports, reckons Somerville-Smith, is that most never stop their operations: “Their security systems must perform day or night throughout the year. Continuing to operate without interruption is essential to providing a good service to airlines and passengers, even in the event of an unexpected power failure. The answer is installing integrated security systems, with automatic fail-over to back-up systems.
Airport security that refers to the techniques and methods used in protecting passengers, staff and aircraft from accidental/malicious harm, crime and other threats, is also evolving to meet the growing threats. The cost of security is also prohibitive. “The underwear bomber’s device failed. His total investment was probably $5,000. And yet, in response, the United States spent close to a billion dollars deploying full-body scanners.” “One attack on one airport in the United States obliges the authorities to increase security at 450 commercial airports. In other words, it’s not the magnitude [of the attack] that drives the diversion of resources to security, but rather the volume and magnitude of targets to be protected,”
In a 2004 study, RAND presented near-term options for improving security at Los Angeles International Airport based upon one fact that consistently emerged from the analysis: it is not the size of the bomb that matters most; it is where it is detonated. All of the most dangerous terrorist attacks involve placement of a bomb in close proximity to a vulnerable crowd of people. The authors proposed two valid ways to reduce this vulnerability: Move the possible bomb detonation away from the people or move the people away from the possible bomb detonation. The study also identified an easy way to make people a less attractive target – improve ticketing and security operations so that crowds of people aren’t waiting in line, as reported by Henry H. Willis and Michael A. Brown.
The authors also gave example of two emerging technologies – smart vehicles and smart infrastructure – that may offer innovative solutions to introduce some useful unpredictability that would improve security by moving high volumes of people and traffic out of line. Smart infrastructure can detect when congestion is occurring. Connected vehicles can use this information to help reroute traffic around congested areas or streamline the flow through congestion.
The United Nations Security Council has unanimously adopted its first resolution to address the growing terrorist threats to the civil aviation community. The resolution, known as 2309 (2016), has asked all nations to improve screening and use new technologies to identify explosives and other threats in airports. It also called on the countries to share information about possible threats and enhance international and regional cooperation to counter extremist threats.
High-performance video surveillance is a key component of a comprehensive airport security system. The video content is analysed to find dangerous items, irregular activities and garner intelligence on passengers. Video Cameras are complemented with thermal cameras to reduce false alarms.
A next important step is perimeter security that utilizes license-plate readers upon entering an airport or transportation hub, or when you enter a parking garage. Perimeter intrusion detection systems (PIDS) are multi-faceted systems that can employ radar, video motion detection, infrared cameras, and fence sensors, among other things. The perimeter part of the layered defense includes hundreds or even thousands of cameras needed for effective airport surveillance with facial recognition software to monitor known terrorists and suspicious activities. It includes a whole range of smart functions to analyse video footage in real time or offline, including analytics for video tracking.
Big data technologies Integrated with cloud computing resources can be used to detect anomalies (unattended baggage, a passenger in a restricted area, crowd formation, etc.), estimates and predicts wait times and spots suspicious behaviour patterns anywhere in the airport.
Recognizing dangerous behaviors with predictive analytics and machine learning complement current security measures and promotes better flying conditions. The theory behind behavior recognition is based on the theory that when someone is in the process of carrying out a criminal or terrorist act, that person exhibits behavior that is out of the norm.
According to datanami.com, this type of behavior is often a tip-off that something is wrong, and can be split into two categories . This may include micro behavior like facial expressions, perspiration, lack of eye contact. Macro behavior is broader movement throughout the space, such as attempting to hide his or her face by turning away when someone approaches or trying to stay out of sight. By using predictive analytics, security operation managers can monitor both access and behavior of internal employees and contractors, identifying dangerous insiders and halting an attack before it happens.
Cyber threats and Cyber Security
The security of commercial airlines and whether the systems crucial to fly planes are vulnerable to cyber-attacks hit the headlines recently after a security researcher claimed that he had been able to hack into flight controls via his underseat entertainment unit.
With sophisticated avionics and digital communications systems on aircraft, with more connected devices and complex interconnected information systems inside the airport, and ever more resourceful cyber attackers, risk of cyber threat has also arisen. Much of the cyber threat across society comes from those who seek commercial gain, or who want to cause economic damage and disruption for a variety of motives.
Securing these systems is clearly of paramount importance, especially in an era prone to dramatic turns of events and ever more sophisticated cyber-attacks.
“Cyber security means analyzing the risk systematically and with a calm head, anticipating the threats and addressing the main vulnerabilities, supporting industry with the actions it needs to take, and taking the right actions as regulators to help protect industry and passengers when we need to,” says Lord Ahmad of Wimbledon, Department for Transport.
New screening technology and new approaches to find concealed explosives are required. New techniques are required which will not only offer better detection, but will also help speed passenger throughput and reduce industry costs. They should also cause minimum inconvenience to the passengers in terms of shortening waiting times and allowing for faster processing through the checkpoint, whilst maintaining the highest levels of security. “What’s clear is that as terrorists continue to innovate, our protective measures have to stay on their coat tails, and where possible get ahead.”
Travelers are screened by metal detectors to detect either weapons or items that could be used as weapons on board aircraft so that they could hijack the plane. There are two types of these scanners currently in use: backscatter scanners that use X-rays and ‘millimetre wave’ machines that use non-ionising radio waves to produce a three-dimensional image.
Backscatter X-rays devices use Compton scattering to detect hidden weapons and explosives on passengers. They, require that the passenger stand close to a flat panel and produce a high resolution image but they depict the passengers in a state of undress that some find embarrassing.
Millimeter wave machines running privacy software, generates a cartoon-line body image that identifies the location of a potentially suspicious element, instead of an all-too-revealing picture.
Explosive detection machines used include X-ray machines and explosives trace-detection portal machines. Explosive detection machines can also be used for both carry on and checked baggage. These detect volatile compounds given off from explosives using gas chromatography.
Another possible solutions for the next generation of airport security screening is computed tomography (CT) scanning – a similar technology to what is used for scans in hospitals.
“The conventional equipment simply doesn’t collect as much data as CT equipment. So a spinning source in a relatively similar amount of time will collect much more data about what it’s looking at compared to a conventional X-ray, which may have just one, two or three cameras that are taking a photo. So when you have more data about what it is you’re looking at, in this case bags, you’re simply able to do more things with that data in the same amount of time.”
Analogic’s Director of Global Sales and Service, Jonathan Stone, described to FTE the key benefits of CT technology: “The benefit of this product, and with CT technology in general, is that passengers can keep laptops and liquids in the bag when they reach the checkpoint. The equipment maintains or exceeds the detection capability of the existing equipment at checkpoints while keeping those items in the bag, so it’s a double benefit.”
Real-Time, Hand-Held Scanner to Revolutionize Airport Security
A real-time, hand-held chemical scanner with stand-off detection capabilities has been unveiled by a team of researchers and engineers from nine European countries.
The device can scan from a distance of up to 100 feet (30 m) and is capable of instantaneous, real-time, unambiguous detection. With real-time scanning delivering a realistic detection rate of one every few seconds, and therefore a rate of 1,200 per hour, the new device can deliver over 6 times more capability than state-of-the-art trace portal scanners that detect bombs and illegal drugs at a rate of 180 of passengers per hour.
“We are making the next generation of sensors that are compact, low cost and low on power consumption and capable real-time detection where the speed and sensibility is unrivaled,” said MIRPHAB coordinator Sergio Nicoletti, from CEA-Leti, France.
“Spectroscopic sensing in the Mid-IR wavelength band (3 to 12 μm) is a powerful analytical tool to address societal challenges like climate change or monitoring emission controls,” said Jose Pozo, Director of Technology and Innovation at the European Photonics Industry Consortium (EPIC).
“In this wavelength band, the so-called ‘fingerprint region,’ chemicals exhibit intense adsorption features allowing superior detection capabilities and unambiguous identification.” The device could be installed on the front of airports, scanning crowds for suspicious material, like explosives or illegal drugs, before they even enter the building.
Explosive scanner from the Loughborough University
Professor Tyrer, from the University’s Wolfson School of Mechanical, Electrical and Manufacturing Engineering, have developed an automated real time technique that can identify tiny amounts of explosive particles invisible to the naked eye. Using complex laser technology, it can remotely scan vehicles, cargo and crowded areas, such as airports, train stations and sports stadiums, automatically alerting an operator if it detects traces of explosives and accurately pinpointing its location.
The system is non-invasive, works in real time and causes no delays to the public or businesses. It is fully automated, ruling out human error, and the images produced are no more controversial than those generated by CCTV. “When you handle an explosive, the chemicals and various constituent components present, leave traces on your fingers and clothes, and are transmitted to anything you touch. Using some of the laser technology that we have invented here at Loughborough over the past few years, we have been able to create a device that can see the explosives and reject all other materials.”
“Sadly it seems inevitable now that we are going to see more and more terrorist attacks like those we recently witnessed in Brussels,” says Professor Tyrer. “And had our device been in operation at Brussels Airport I firmly believe those terrorists would have been identified and prevented from entering the terminal
ExDtect will soon be used to scan cargo for an international courier, and discussions are taking place with several other international organisations which are also keen to use the technology.
MRI for luggage
Scientists at Los Alamos National Laboratory in New Mexico, have developed a system called MagRay, combining X-rays and nuclear magnetic resonance technology, based on the MRI scanning. “We combine the two methods to discriminate benign from threat liquids,” says Michelle Espy, a physicist at Los Alamos and MagRay’s project leader.
Biometric Security: Qatari breakthrough in airport security
Biometric technologies are also being tested that allows us to verify a person is who they say they are by using their own unique set of identifiers – fingerprints, iris scans or a combination of the two.
A locally-developed Smart Security Investigator (SSI) system was unveiled by the Ministry of Interior (MoI) to detect potential smugglers or travellers infected with epidemic diseases at Qatar’s entry points. “The new system could identify suspicious travellers and speed up the clearance process, without unnecessary delays due to security related searches,” said Captain Ali Hassan al-Rashid, from the Internal Security Force (ISF)
“The new system depends on detecting the changes in the size of the retina of the eye and thermal changes of the person who stands before the sensor of the system for a few seconds,” “There are readings for normal persons and other indicators for persons with criminal conduct, which normally shows up in certain biological changes in the size of their retina or the temperature of their bodies. Such changes could be considerably different from those that display normal unrest, sickness or perplexity,” Captain al-Rashid stated.
Scientists are also working on monitoring physiological measurements such as breathing rates, heartbeats, perspiration and blink rates that may help spot and uncover terrorists.
Ultrafast liquid explosive scanner to accelerate Airport Security checks
The Laser Detect Systems Ltd. (LDS), an Israeli electro-optics company has launched a breakthrough in explosive detection systems.
This system is able to accurately and reliably detect a wide range of explosives and other hazardous compounds in liquid, gel or powder form. It can also detect the materials sealed in plastic or glass as well as materials mixed or diluted with other substances in a bid to escape detection. It can also detect traces and residues of explosives on already inspected systems. The company sources say that the system offers high sensitivity, low false alarm rate and high throughput, performing a typical inspection in only 3 to 5 seconds.
The laser scanner employs advanced laser gated Raman spectroscopy scanning methods and has been built in cooperation with Israel’s security forces. According to company sources, the system has successfully undergone exhaustive testing by explosion detection experts, led by Israel’s internal security agency.
Cyril Dujardin is CEO of Morpho Detection, a leading supplier of explosives, narcotics and chemical detection systems. “We have developed technology around X-ray Diffraction that will allow airports to screen liquids in the bags at checkpoints without the need to take them out.” The future development could see it also being used to detect solid explosives if and when airports are required to screen solid explosives automatically at the checkpoint.
Transportation Security Administration missed a whopping 95% of guns and bombs in recent airport security “red team” tests. “However according to experts” We don’t need perfect airport security. We just need security that’s good enough to dissuade someone from building a plot around evading it”. There are also technology failures; the current screening technologies are terrible at detecting the plastic explosive PETN
“For me the ideal experience is no security,” said Dujardin. “Or, at least the feeling that there is no security – that everything is as much as possible automated and seamless for the passenger.”
Security Market Growth
Airport Security Market size is set to exceed USD 12.8 billion by 2023; according to a new research report by Global Market Insights, Inc. Growing number of safety threats are compelling airports to become highly vigilant and are dictating the requirement for smarter security solutions. Such factors are driving investments towards the development of screening and identification technologies such as biometrics, RFID and prototype screening devices among others.
Airport cybersecurity market accounted for over 20% of the global demand in 2015. Increasing terrorism, and smuggling of premium goods has propelled the segment growth. Growing demand for airline security to avoid the serious disruptions through cyber-attacks may enhance the airport security market revenue.
Screening technology was worth over USD 4 billion in 2015. Increasing adoption owing to the presence of the advanced features including metal detectors, X-ray machines and protection from sudden attack is fueling the technology demand. The ability to screen individuals and luggage to identify endangered material will positively impact the airport security market share.
Asia Pacific is anticipated to witness significant growth owing to the attractive India and China airport security market share and growth prospects. The region accounted for over 25% of the global revenue in 2015. Economic growth and improving infrastructure are driving demand for advanced security solution in the region. Middle East & Africa airport security market size is expected to witness notable growth due to the rise in the vulnerabilities and undesirable attacks in the countries including Saudi Arabia and the UAE.
Prominent players in the airport security market include Smiths Detection, Safran Morpho, OSI Systems (Rapiscan), L-3 Security & Detection, and American Science & Engineering. Other notable players include, Bosch Security Systems, AutoClear LLC, CEIA, and Lockheed Martin. Technological innovations and increase in R&D expenditure are among the key strategies adopted by participants to offer differential solutions to maximize market share.