I have had the opportunity to work for many individuals and organizations. Invariably a fellow officer finds out that I do “bodyguard” work and expresses an interest. Their first question when discussing a possible detail is, “What gun should I carry?”Not to be a smart-a**, but the only time I've seen such an incident was when Pres. Reagan was shot, and the Secret Service had Uzi's. (I recognize that Reagan had already been whisked away by the time this photo was taken, but the question was what gun to carry).
The short answer is, it doesn’t matter! A brief study in the US doctrine of DP/EP can be summed up in a simple phrase: Defense in depth until compromise, then cover and evacuate. When my fellow officers and friends ask such an obviously uneducated but expected question, I answer it with my own question. When was the last time you saw the Secret Service standing around with POTUS (President of the United States) during an incident with their guns out? As you probably just did, they pause in silence.