Congressional Republicans and Democrats demanded answers from the Bush administration Thursday about a government spy agency secretly collecting records of ordinary Americans' phone calls to build a database of every call made within the country. This database affects as many as 200 million Americans. AT&T Corp., Verizon Communications Inc., and BellSouth Corp. telephone companies began turning over records of tens of millions of their customers' phone calls to the NSA program shortly after the Sept. 11, 2001, terrorist attacks. 'We have reached a privacy crisis,' said Rep. Edward J. Markey, D-MA, the ranking Democrat on the House Telecommunications and Internet Subcommittee. 'The N.S.A. stands for Now Spying on Americans.' Republican Sen. Lindsey Graham, R-S.C., told Fox News Channel: The idea of collecting millions or thousands of phone numbers, how does that fit into following the enemy?" The Justice Department has abruptly ended an inquiry into the warrantless eavesdropping program because the NSA refused to grant its lawyers the necessary security clearance. The Justice Department's Office of Professional Responsibility [said] they were closing their inquiry because without clearance their lawyers cannot examine Justice lawyers' role in the program.