U.S. air safety threatened by possible hacking - senators

WASHINGTON (Reuters) - Major security vulnerabilities in the Federal Aviation Administration's information systems are putting air traffic control programs, along with plane passengers, at risk, two U.S. senators said in a letter to the transportation secretary on Monday.

"These vulnerabilities have potential to compromise the safety and efficiency of the national airspace system, which the travelling public relies on each and every day," Senator Bill Nelson, a Florida Democrat, and Senator John Thune, a South Dakota Republican, wrote to Transportation Secretary Anthony Foxx.