"Nobody, absolutely nobody, straps a bomb on their body because they were recruited from the Internet, " he said.

CNN: Young Muslims turn to technology to connect, challenge traditions

During his military career, Mr Smith worked all over the world and was involved in mine clearance, bomb disposal, body recovery and anti-piracy work.

BBC: Diver John Smith

Beamer told the FBI that one hijacker positioned in the rear of the plane claimed to have a bomb strapped to his body and that he -- Beamer -- and others were going to jump him.

CNN: Calls indicate Flight 93 passengers went down fighting

He said his body bears the scars of the Taliban bomb which blew up the unit he was working with in Sangin on 14 November 2007.

BBC: Afghan interpreter: Leicester man's asylum reconsidered

After the Christmas airplane bomb scare, full-body scanners have been getting lots of attention as a way to make plane travel safer.

FORBES: An EPIC discovery: Full body scanner images not as private as TSA claimed

Murtha told of working inside the Pentagon to have a Purple Heart awarded to a young soldier whose body had been torn apart by an American bomb.

NPR: Murtha's Moment: Not Soon Forgotten

Instead, he detonated a bomb that he had strapped to his body.

NPR: Cloudy Fate for Iraqi Sunnis Fighting Al-Qaida

Sharif's bomb failed to detonate and he escaped but his body was found in the sea 12 days later in April 2003.

BBC: County asks for anti-terror cash

Body bombs gained worldwide attention in 2009 when al Qaeda's chief bomb-maker, Ibrahim al-Asiri, built a device containing around 100 grams of PETN, a difficult-to-detect powdery explosive, that was designed to be inserted inside the rectum of a suicide bomber.

CNN: STORY HIGHLIGHTS

The Iraq Body Count database estimates that seven people have been killed every single day by suicide and car bomb attacks this year.

CNN: War-scarred Baghdad places little faith in U.S. election