Retired major general on why he thinks Putin is trying to instill fear inside Russia

The deputy chairman of Putin’s security council and former Russian president Dmitry Medvedev fired off a new warning at the US, claiming that the transfer of nuclear weapons to Ukraine would be considered an attack on Russia. CNN’s Erin Burnett reports and Retired Maj. Gen. James “Spider” Marks and the Defense and Security Department president at the Center for Strategic and International Studies Seth Jones join to discuss. #CNN #News