The leaders and factotums of these radical, hate-filled and ultimately treasonous groups should be hunted down and destroyed like the animals they are. They are America's domestic enemies.
Nixon proved that you can't take pre-emptive action against these groups or stop the DNC from coordinating with them. The Watergate break-in was perpetrated to find information on the DNC coordinating with the radical, potentially violent VVAW, Kerry's group.
Honestly, the myraid of non-lethal techniques and tools that have been developed over the last few decades have really been astounding, and we may see them put to the test here.
I'd give you even odds that one of those new VMADS might be on standby in the area. Or more than one...