Airline passengers boarding direct flights to the US from overseas may be asked to power up certain electronic devices being carried aboard, including cell phones. The announcement did not single out any other electronics. The Department of Homeland Security (DHS) has directed Transportation Security Administration (TSA) screeners at certain overseas airports with direct flights to the US to “implement enhanced security measures.” All electronics typically undergo screening during pre-boarding TSA inspections.

“DHS continually assesses the global threat environment and reevaluates the measures we take to promote aviation security,” DHS Secretary Jeh Johnson said on July 2. “As part of this ongoing process, I have directed TSA to implement enhanced security measures in the coming days at certain overseas airports with direct flights to the United States. We will work to ensure these necessary steps pose as few disruptions to travelers as possible.”

During security inspections, TSA officers may ask passengers to power up some devices, including cell phones. Devices that are unable to be turned on “will not be permitted onboard the aircraft,” DHS said, adding, “The traveler may also undergo additional screening.”

While the TSA generally permits Amateur Radio equipment aboard aircraft, including that packed in carry-on baggage, such items, according to existing TSA policy, “may be subject to additional screening or not allowed through the checkpoint, if it triggers an alarm during the screening process, appears to have been tampered with, or poses other security concerns. The final decision rests with TSA on whether to allow any items on the plane.”

DHS said that the TSA “will continue to adjust security measures to ensure that travelers are guaranteed the highest levels of aviation security conducted as conveniently as possible.”