Did you know when you joined Twitter how powerful a communication tool it would become? Jenny Johnson, London I didn’t know anything about it when I joined. I was on Facebook.
The Pentagon has revolutionized warfare during the past decade, making unmanned aerial vehicles, known as UAVs, a staple of modern combat in Afghanistan and Iraq. Remotely-controlled drones, such as the Predator and the Reaper, have allowed the U.S.