The drone campaign against al Qaeda and its allies has been one of Brennan 's biggest legacies in the four years he has served as President Barack Obama 's chief counterterrorism adviser . The Senate Intelligence Committee receives the document from the White House . The panel holds a hearing Thursday on John Brennan 's nomination as CIA director . Brennan has asserted that drone strikes against U.S. enemies are legal . Comment:
The Senate Intelligence Committee receives the document from the White House . The panel holds a hearing Thursday on John Brennan 's nomination as CIA director . Brennan has asserted that drone strikes against U.S. enemies are legal . Comment: