The congressional outrage went into overdrive when, six months after the September 11 attacks, the Immigration and Naturalization Service sent word to the Florida flight school where two of the terrorists had been trained that their student visas had been approved. The agency had granted approval the previous summer, before the attacks, but “backlogs and antiquated computers” had delayed delivery, and the INS had failed to recheck what was in the pipeline.

-CQ Weekly, March 16, 2002