Avold have so proved - put a stop to their cowardly murdering rather quickly and thus end the Arab tolerance of these beheading fanatics.

CENTERFORSECURITYPOLICY: Ending tolerance of Islamism

"We hear threats all the time, but rarely so specifically, and that someone has already carried out in the most cowardly way, " he said.

CNN: STORY HIGHLIGHTS

In doing so, Obama recasts the image of the terrorists themselves, from enemy warriors to cowardly thugs and resets the relationship between the U.S. and Islam.

NPR: Obama Refocuses Terror Threat To Pre-9/11 Level