As US counterterrorism chiefs insist that drone strikes are legal under international law, one protester decides to object during a press conference.
Speaking on the eve of the one-year anniversary of the US killing of Osama bin Laden in a raid in Pakistan, the White House aide, John Brennan, said the US administration holds itself to a "rigorous" review process in deciding on drone targets in Afghanistan and elsewhere.
"I'm here today because President Obama has instructed us to be more open with the American people about these efforts," Mr Brennan said in a speech to the Woodrow Wilson International Center for Scholars think tank.
Mr Brennan's remarks were interrupted when a member of the anti-war group, Code Pink, criticised the US's use of drone strikes.
Standing in front of Mr Brennan and addressing the audience, the protester asked “ Why are you lying to the American people and not saying how many innocents have been killed?”.
After futile attempts by the event organisers to remove the woman, police were called and a burly officer in a yellow t-shirt dragged the petite blonde protester towards the door.
Undeterred the activist continued to address the audience as she was being carried away, her serious message about the dangers of drone strikes somewhat undermined by the cat-like position she adopted as she was removed from the room, clinging to the doorway with her hands and feet.