British Airways will make you turn on your phone or lose it. What are other airlines doing? A TSA announcement requiring US-bound flyers to turn on their devices has caused confusion, with airlines enforcing the policy differently.
Al Qaeda follower Ibrahim Hassan al-Asiri has a talent for building hard-to-detect bombs, and now intelligence indicates that he has ties to an Islamist group whose members include Westerners – who don't need visas to travel to the US.
Out of what one official called an "abundance of caution," the US called for additional security measures at some foreign airports. Some have raised concerns about non-metallic explosives undetectable in metal detectors.