Defense Secretary Robert Gates has told 60 Minutes that President Obama's decision to launch a raid against Osama Bin Laden's compound with ground troops was "one of the most courageous" decisions he has ever seen a president make.

Gates adds ""Frankly, my heart was in my mouth... There was a lot of uncertainty about whether he was there. This was a very risky operation. So, I was very concerned. So was the President... I worked for a lot of these guys and this is one of the most courageous calls -- decisions -- that I think I've ever seen a president make."