On March 3, 1991, four LAPD cops pulled over Rodney King, 25, for driving drunk and savagely kicked, tasered, beat him with batons 56 times, "like a runaway slave." Unprecedently, the assault was filmed by a neighbor, "and the whole world saw it." Still, the cops were later acquitted, sparking a five-day uprising. Today, stunningly little has changed: With black deaths mounting, many wonder, "H ow many more instances of police brutality do we need to witness before we do something about it?"