Today at 2pm in Tompkins Square Park, there will be a punk concert to commemorate the twentieth anniversary of the police riots that took place there. The NY Times has an account of the battle between cops and protesters that took place back on August 6th and 7th, 1988 over a city-imposed curfew of 1 a.m. that had been enacted in an attempt to clean up the rampant homeless population and drug usage that dominated......