TSA may ask air travelers headed to the U.S. on direct flights to power up some electronic devices. The move is part of enhanced security measures at certain airports abroad. New measures come in the wake of reports that terrorists are working on using electronic devices as bombs. The TSA did not disclose the airports abroad where the restriction on powerless devices will come into force. The agency did not provide specific reasons why the new measures were being introduced, but said the traveler may also undergo additional screening.”]