James Bamford has been the preeminent expert on the National Security Agency since his reporting revealed the agency&;s existence in the 1980s. Now Bamford describes the transformation of the NSA since 9/11, as the agency increasingly turns its high-tech ears on the American public.

The Shadow Factory reconstructs how the NSA missed a chance to thwart the 9/11 hijackers and details how this mistake has led to a heightening of domestic surveillance. In disturbing detail, Bamford describes exactly how every American&;s data is being mined and what is being done with it. Any reader who thinks America&;s liberties are being protected by Congress will be shocked and appalled at what is revealed here.