DHS was in Seattle over May Day, I suppose anticipating riots. There were pictures of local cops taking to people and DHS standing right there with them.
Every year, there’s a DHS presence near the location of the Super Bowl game. Big “command post” vehicle, flotilla of smaller government-tagged SUVs and sedans, satellite commo gear trailers, etc. I think they do this at every “highly visible” event now (e.g.: Indianapolis 500).
The government is probably waiting and hoping for the worse, so they can come in and save the day with more government control..
All for your safety of course.