I see your point and I agree this should not be blown out of proportion.
I think your right. No flip flopping
One thing to remember is that the First couple were inside that foyer with Chilean President Lagos and his wife. The Chilean guys were protecting THEIR Prez from assasination too. It was a miscommunication. W saw the altercation, went over to the group and said "they're with me" ... end of altercation. This storyline unfolds every night in the doorways of trendy nightclubs. ;^)