This weekend's arrest of a man who boarded a commercial airliner with plastic explosives hidden in his sneakers highlights the difficulty of screening passengers for bomb-making materials. Officials ...

The Marine Corps demolition specialist was worried -- about America, and about the civil war he feared would follow the presidential election. And so, block by block, he stole 13 pounds of C4 plastic ...

When a veteran beach clean-up expert noticed a bloom of yellow plastic tubing along Outer Cape strands, she began to ask questions. "I had never seen it before," said Laura Ludwig, manager of the ...

WASHINGTON (AP) -- Suicide bombers used thousands of pounds of powerful plastic explosives in the nearly simultaneous series of attacks in Baghdad this week, a possible sign of al-Qaida involvement, a ...

The Marine Corps demolition specialist was worried — about America, and about the civil war he feared would follow the presidential election. And so, block by block, he stole 13 pounds (6 kilograms) ...