Ali McCracken, right, and others with Code Pink wear pink drones as they protest outside the Association for Unmanned Vehicle Systems International 2013 conference held at the Washington Convention Center, Washington, D.C., Tuesday, August 13, 2013. (Andrew Harnik/The Washington Times)

Ali McCracken, right, and others with Code Pink wear pink drones as they protest outside the Association for Unmanned Vehicle Systems International 2013 conference held at the Washington Convention Center, Washington, D.C., Tuesday, August 13, 2013. (Andrew Harnik/The Washington Times)