I once had to share space with the protective detail for the Italian Prime Minister. All those guys whose job didn't require them to stand right next to him were wearing photographer's vests.I've seen photographers vests worn covered with NRA, Glock, Colt and other patches.
While useful, we called them 'shoot me first vests".
With mesh sides.
Putting the Uzis under their arms on obvious, "Look-At-Me!" display.
It was hilarious, the worst case of advertising they were carrying a concealed weapon I've ever seen from someone who's supposed to know better.