Los Angeles schools closed after credible terror threat

Los Angeles schools were closed on 15 December, after the district received an electronic threat to many schools, school and police officials said. Los Angeles police and the FBI were notified of the threat, which is being investigated, officials said. Dec 15, 2015

Bomb-proof bag could suppress explosions on aircraft

This is what happens when a bomb goes off inside the luggage hold of a normal passenger jet. Authorities believe it was a blast like this which downed a Russian aircraft over Egypt in October, killing all 224 people on board. Dec 14, 2015