Actually, $10 million is just the reported amount of the settlement between victims and the city of Los Angeles that is being brought today to the City Council, says the LAT's Joel Rubin. The monetary cost of the LAPD's little misadventure in law enforcement in MacArthur Park on May 1, 2007 is much higher if you count the staff and lawyer time to investigate the incident, the police re-training time, and the lost hours of police officers disciplined or taken off the street in the aftermath. Rubin says the council may vote today on the proposed settlement.
LA Observed video from that day's march

