Congress recently passed a broad authorization of the NSA surveillance program, bowing to pressure from President Bush. From the New York Times:
Racing to complete a final rush of legislation before a scheduled monthlong break, the House voted 227 to 183 to endorse a measure the Bush administration said was needed to keep pace with communications technology in the effort to track terrorists overseas. . . .
There was no indication that lawmakers were responding to new intelligence warnings. Rather, Democrats were responding to administration pleas that a recent secret court ruling had created a legal obstacle in monitoring foreign communications relayed over the Internet.
They also appeared worried about the political repercussions of being perceived as interfering with intelligence gathering.