Russia continues to link terrorist attack to Ukraine

The March 22 terrorist attack on Crocus City Hall killed 145 people and injured hundreds — the deadliest attack in Russia in 20 years. Russia blamed the U.S. and Ukraine despite specific U.S. intelligence shared with Russia of an impending attack by ISIS-Khorasan. Nick Schifrin takes a look at Russia’s unfolding accusations and the state of the U.S.-Russia relationship.