They would send someone to do it for them, but you better believe they would bring in their SS if they thought their precious lives were threatened. After all according to them, the world needs them. President Bush doesn't worry about himself, but he was worried about the agent and probably Laura as well. He's a good man.
Several years ago, very shortly after 9/11, he and Laura went on a foreign trip. I can't remember where it was to, but he kept Laura VVVEEEERRRYYYY close to him throughout the trip. He was obviously very concerned for her safety.
Ohio, do you remember the details?