Today the State Department informed Congress that Russia is not complying with the New START agreement, its last remaining nuclear arms control treaty with the U.S., as relations between the countries remain tense. Russia is not allowing U.S. inspectors into their nuclear weapons facilities, an obligation under the treaty.

For more, KCBS Radio's Patti Reising and Bret Burkhart spoke with James Acton, co-director of the Nuclear Policy Program at the Carnegie Endowment for International Peace.