The May 1st bar patrons mark the true beginning of events that led to the Kent State massacre.
http://news.oldva.org/?p=115
Bringing in the big guns - typical.
Has anyone ever read the fiction book "Unintended Consequences"? It does have some interesting history in it, including this:
http://en.wikipedia.org/wiki/Bonus_Army
We had our own Tiananmen Square right here in Washington in the 1930's.