In “The Enemy Within,” Frontline and The New York Times – in affiliation with the Center for Investigative Reporting – team up to investigate the nature of the terrorism threat against the United States five years after 9/11. After a multibillion dollar government reorganization and the transformation of domestic counterterrorism efforts, is the country better prepared to prevent another catastrophic attack? The documentary examines the FBI’s case against a father and son in Lodi, California, as a test case of America’s response to the threat of homegrown terrorism.

The Frontline web site includes original reporting, extended interviews, and video of the full program.