You can come home from Iraq and have a reasonable belief that you're not going to be woken up in the middle of the night by Sunni soldiers shouting "Allahu Ahkbar" while waving AK47s outside your house because you took down their arms ring.
The people in Washington could be their neighbors. Fellow congregants. People just down the road. There's a reasonable assumption that, in this climate, the officers could be doxxed and find their families and homes in danger.
I believe this commission will find that about 95% of the people present were actually peaceful protesters upset that their candidate lost. They have every right to do that, and I support then exercising their rights. The 5% that were the primary and secondary agitators are the ones that need to be investigated, and it needs to be found out if any members of Congress or any Government entity aided and abetted them.