Obama's drone speech interrupted by anti-war activist

At times, it seemed US President Barack Obama was taking part in a debate rather than giving a speech. Deep into his address at the National Defence University, a heckler repeatedly interrupted from the back of the room, demanding an end to drone strikes and the closing of the Guantanamo Bay detention centre in Cuba.

The heckler, who strenuously objected to being described as such, was Medea Benjamin, co-founder of Code Pink, a group opposed to US military actions. She is a familiar face on Capitol Hill, where she has repeatedly interrupted proceedings.

"Excuse me, President Obama, you are the commander in chief," she yelled as the president tried to continue speaking.

"Why don't you sit down, and I'll tell you exactly what I'm going to do," Obama said.