Republicans 'living in Dark Ages' on Cuba

At last night's GOP Debate, there was a lot of big talk about Iran and the dangers of them acquiring a nuclear weapon and what we must do to counter it. As well as a lot of talk about Cuba and the need for sanctions and a travel embargo to stick around. Much of the rhetoric coming from the GOP candidates makes you wonder, if they're living in the past, and refuse to acknowledge that the world has changed. Ret. Col. Lawrence Wilkerson discusses.