After 9/11, the Department of Homeland Security created the Nationwide Suspicious Activity Reporting Initiative to help spot potential terrorists, while the Mall of America launched its own security program. NPR and the Center for Investigative Reporting report how such efforts…

A Web site created a stir by publishing a story claiming Sen. Hillary Clinton, D-N.Y., had plans to use a purported Islamist upbringing of Sen. Barack Obama, D-Ill., against him in her presidential campaign. Experts discuss the struggle to separate…