Who is Khorasan?

ISIS made its brutality known around the world through a string of disturbing videos. Many Americans are just learning the name of a different group called Khorasan, who is also the target of airstrikes in Syria. Officials say Khorasan has ties to one of al Qaeda's master bomb makers in Yemen and their goal is to launch a terror attack on U.S. targets. Pentagon Press Secretary Rear Admiral John Kirby says the airstrikes have disrupted an imminent Khorasan attack. A U.S. intelligence source says Khorasan was already in the advanced stage of a plot. Pamela Brown has the latest.

Anderson discussed the efforts to neutralize Khorasan and ISIS with President Obama's Counterterrorism and Homeland Security Adviser Lisa Monaco.