implanted in passengers on flights bound for the u.s. the other story, may day protests around the country and the world. here in the united states the occupy movement is behind the demonstrations. in other countries hunl crowds taking to the streets to mark international workers day. we ll have live reports from here and overseas. one year ago an elite team raided a compound in pakistan, killed the most wanted man in the world, osama bin laden. today on the anniversary of bid laden s raid we re learning about possible new threats including the use of bombs implanted inside the bodies of terrorists. susan candiotti is following the story for us. explain to us what this is about. steps are being taken to guard against a new threat involving body bombs possibly planted inside passengers on flights headed for the u.s. this is according to a u.s. government official with knowledge of the threat. however, a spokesman for the department of homeland security adds that dhs has no