Brennan sworn in as CIA chief

By DONNA CASSATA and ROBERT BURNS | March 8, 2013 | 11:30 AM EST

FILE - In this Feb. 7, 2013 file photo, CIA Director nominee John Brennan, testifies before a Senate Select Intelligence Committee confirmation hearing on Capitol Hill in Washington. The Senate’s approval of Brennan to be CIA director puts in place a third key member of President Barack Obama’s national security team. Brennan won Senate confirmation on Thursday, March 7 after the administration bowed to demands from Republicans blocking the nomination and explicitly stated there are limits on the president's power to use drones against U.S. terror suspects on American soil. (AP Photo/Manuel Balce Ceneta, File)

WASHINGTON (AP) — John Brennan has been sworn in as the director of the CIA, becoming the third key member of President Barack Obama's new national security team.

The White House says Vice President Joe Biden swore Brennan in during a private ceremony in the Roosevelt Room.

Brennan had been Obama's top counterterrorism adviser in the White House. He won confirmation Thursday after a contentious Senate debate on the use of armed drones against terrorism suspects.