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Weapons, Bombs Easily Detected by Wi-Fi: Study

The study was performed at Rutgers University, New Brunswick. It also received the best paper award at the 2018 IEEE Conference.

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Wi-Fi can now detect weapons and bombs. Flickr

Interestingly, ordinary Wi-Fi can easily identify weapons, bombs and explosive chemicals in bags just anywhere, be it a crowded stadium, or museums, theme parks, schools and other public spaces, a new study reveals.

The researchers’ suspicious detection object is easy to set up, reduces security screening costs and avoids invading privacy such as when screeners open and inspect bags, backpacks and luggage. Traditional screening generally requires high staffing levels and costlier specialized equipment.

“This could have a great impact in protecting the public from dangerous objects. There’s a growing need for that now”, said study author, Yingying Chen.

Wi-Fi, or wireless, signals in most public places can penetrate bags, Pixabay
Wi-Fi, or wireless, signals in most public places can penetrate bags, Pixabay

The study reveals that Wi-Fi, or wireless, signals in most public places can penetrate bags to get the dimensions of dangerous metal objects and detect them, including weapons, aluminium cans, laptops and batteries for bombs. Wi-Fi can also be used to estimate the volume of liquids such as water, acid, alcohol and other chemicals for explosives.

This low-cost system requires a Wi-Fi device with two to three antennas and can be integrated into existing Wi-Fi networks. The system analyzes what happens when wireless signals penetrate and bounce off objects and materials.

Experiments were done with 15 types of objects and six types of bags demonstrating detection accuracy rates of 99 percent for dangerous objects, 98 percent for metal and 95 percent for liquid. For typical backpacks, the accuracy rate exceeds 95 percent and drops to about 90 percent when objects inside bags are wrapped.

Wifi, Weapons
“We wanted to develop a complementary method to try to reduce manpower,” concluded Chen. VOA

“In large public areas, it’s hard to set up expensive screening infrastructure like what’s in airports. Manpower is always needed to check bags and we wanted to develop a complementary method to try to reduce manpower,” concluded Chen.

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Next steps include trying to boost accuracy in detecting objects by imaging their shapes and estimating liquid volumes.

The study was performed at Rutgers University, New Brunswick. It also received the best paper award at the 2018 IEEE Conference on Communications and Network Security on cybersecurity. (IANS)

Next Story

Russia Tries to Rein in Chemical Weapons Watchdog

Russia presented a draft resolution accusing OPCW of politicization just before a new probe begins of chemical attacks in Syria

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russia, tries, rein, chem, weapons
FILE - Rubble lines a street in Douma, the site of a suspected chemical weapons attack, near Damascus, Syria, April 16, 2018. VOA

Russia on Thursday presented a draft resolution to the Security Council accusing the UN’s chemical weapons watchdog, the OPCW, of politicization just before a new probe begins of chemical attacks in Syria.

The draft text, seen by AFP, states that the Council — where Russia holds veto power — is the only international body that can impose measures on countries that violate the Chemical Weapons Convention.

The Organization for the Prohibition of Chemical Weapons (OPCW) agreed last year to set up a mechanism that would identify the perpetrators of chemical attacks, a move bitterly opposed by Russia and Syria.

Russian proposal

The proposed resolution notes “with concern the continuing politicization of the work of the OPCW and growing deviation from the established practice of taking consensus-based decisions.”

russia, tries, rein, chem, weapons
FILE – In this April 16, 2018, file photo, people stand in front of damaged buildings, in the town of Douma, the site of a suspected chemical weapons attack, near Damascus, Syria. VOA

UN diplomats said the Russian proposal was aimed at keeping the OPCW in check as it pushes ahead with the investigation to uncover those behind chemical weapons use in Syria.

“What it’s really about of course is the Russians trying to strangle OPCW,” said a diplomat, who spoke on condition of anonymity.

The West pushed through the new blaming powers after OPCW reports confirmed chemical weapons use in Syria, as well as a nerve agent attack on Russian former double agent Sergei Skripal in the English city of Salisbury in March 2018.

“The Russian rationale is to weaken the OPCW and the Chemical Weapons Convention, with an eye on Syria but also Salisbury,” said another diplomat.

Time frame for resolution

It remained unclear when the draft resolution would be put to a vote. UN resolutions require nine votes and no vetoes to be adopted in the council.

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The proposed resolution is backed by China, diplomats said.

“This looks like a desperate bid to prevent further confirmation that the Syrian government, like ISIS, repeatedly used chemical weapons in violation of international law,” said Louis Charbonneau, UN director for Human Rights Watch.

The Russian mission to the United Nations did not immediately respond to an AFP request for comment.

OPCW chief Fernando Arias said in March that the new investigation of chemical attacks in Syria would begin in the coming weeks.

russia, tries, rein, chem, weapons
Russia on Thursday presented a draft resolution to the Security Council accusing the UN’s chemical weapons watchdog, the OPCW. Wikimedia Commons

Western countries are calling on the team to start work on identifying the culprits behind a deadly attack in the Syrian town of Douma in April 2018.

Missile strike

The United States, Britain and France launched a one-off missile strike on Syria in April last year in response to the use of chemical weapons in Douma.

The OPCW said in a report that chlorine was likely used in that attack, which killed more than 40 people, but Russia and Syria have rejected those findings.

Douma attack

The report did not specify who was behind the Douma attack as it was not in the OPCW’s mandate at the time.

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In 2015, the council unanimously agreed to establish the OPCW-UN joint investigative mechanism (JIM) to identify those responsible for chemical attacks in Syria.

But in late 2017, Russia vetoed a bid to renew the mandate of the JIM after the panel blamed the Syrian government for chlorine attacks and for using sarin in a deadly assault on the town of Khan Sheikhun that same year.

Russia has used its veto 12 times at the council to shield its Syrian ally from international action. (VOA)