Scientists detected the gravitational waves after a pair of unusual black holes collided.
President Obama insists the military operation in Libya serves U.S. interests, but military analyst Andrew Bacevich is skeptical of that claim. Bacevich says the mission in Libya will eventually expand to regime change regardless of intentions. And he wonders if this means we’ll go into Yemen, Syria or Bahrain next.
We speak with Bacevich, who is professor of history and international relations at Boston University. His most recent book is “Washington Rules: America’s Path To Permanent War.”
Robin Young and Jeremy Hobson are hitting the road. Our Tumblr brings you behind the scenes of our election coverage.