Former KGB agent Jack Barsky breaks down Vladimir Putin's motives for the Ukraine invasion

Russian President Vladimir Putin is ramping up his aggression against the West and so-called "national traitors." Former KGB agent and author of "Deep Undercover: My Secret Life and Tangled Allegiances as a KGB Spy in America" Jack Barksy joins CBS News to discuss Putin's motives and greatest threats as the invasion of Ukraine moves forward.