Frontline addresses an issue of major consequence for all Americans:
Is the Bush administration's domestic war on terrorism jeopardizing our civil liberties? Reporter Hedrick Smith presents new material on how the National Security Agency's domestic surveillance program works and examines clashing viewpoints on whether the President has violated the Foreign Intelligence Surveillance Act (FISA) and infringed on constitutional protections.

In another dramatic story, the program shows how the FBI vacuumed up records on 250,000 ordinary Americans who chose Las Vegas as the destination for their Christmas-New Year holiday, and the subsequent revelation that the FBI has misused National Security Letters to gather information. Probing such projects as Total Information Awareness - and its little known successors, Smith discloses that even former government intelligence officials now worry that the combination of new security threats, advances in communications technologies, and radical interpretations of Presidential authority may be threatening the privacy of Americans.

Tuesday, 5/15/07 from 10-11:30 p.m. ET