U.S.: Russia to give more powerful arms to rebels

U.S. officials tell CNN there's more evidence of a Russian troop buildup along the border with Ukraine, and there is evidence that the Russia is targeting Ukrainian military positions.

U.S. has 'evidence that Russia is firing' into Ukraine

The State Department also says Russia is getting ready to deliver heavier and more powerful rocket launchers to separatist forces in the Ukraine.

Retired Air Force General Michael Hayden, former director of the Central Intelligence Agency and the National Security Agency, is OutFront.