Lone wolves operate on the fringes of extremist movements, with such loose associations being encouraged by terrorist organizations such as al-Qaeda and Hezbollah, and that makes them harder to detect.
International drug cartels have been forming alliances with terror groups and other organized criminal organizations in what our own gang expert Richard Valdemar calls "the unholy alliance." A new book, "The Terrorist-Criminal Nexus," explores these connections. Author Jennifer Hesterman joined us to discuss her book.
Newly released video shows the aftermath of the Nov. 5, 2009 attack on the Fort Hood deployment center. Many of the victims of the attack are upset that it was classified as "workplace violence" instead of a terrorist attack. Read the full story here.