I have no problem with modern ammo in any of the big 3 defensive rounds. 9mm, 40 or 45.

In all honesty the FBI doesn't know very much about Street level Law Enforcement.

Of all the agencies they are one of the least likely to be involved in a shooting.

That wasn't always the case. We learned a whole lot from the FBI shooting on 4/11/86 in Miami. A tragic and painful lesson though.