It's always been the case for military that are within proximity of the President of the United States, to remove the bolts from their weapons. I believe the Secret Service is usually behind that decision. Besides, there is no military member that is going to shoot the President Obama. Why do I say that with such confidence? VP Joe Biden. Trust me, the only reason Joe Biden was selected as the VP was to keep President Obama safe, and the Secret Service knows this fact. Why do you think they had time to party in Colombia?