WASHINGTON — About once a month, staff members of the congressional intelligence committees drive across the Potomac River to C.I.A. headquarters in Langley, Va., and watch videos of people being blown up.
As part of the macabre ritual the staff members look at the footage of drone strikes in Pakistan and other countries and a sampling of the intelligence buttressing each strike, but not the internal C.I.A. cables discussing the attacks and their aftermath. The screenings have provided a veneer of congressional oversight and have led lawmakers to claim that the targeted killing program is subject to rigorous review, to defend it vigorously in public and to authorize its sizable budget each year.