Increased Airport Security

The US Department of Homeland Security is stepping up security for some flights headed to the US over heightened concern from global threats.

Homeland Security Secretary Jeh Johnson says enhanced security measures will be announced in the coming days at certain overseas airports.

He says there is no specific plot related to the change.

The United States has been focused on efforts by Al Qaeda in the Arabian Peninsula to develop undetectable explosives since the unsuccessful attempt by the so-called ‘underwear bomber’ to bring down a Delta Air Lines jet over Detroit in 2009.