Anderson Cooper goes inside 15 square miles of Los Angeles terrorized by 34 different gangs, where death is a constant menace and gangsters rule the streets. Police daily face a losing battle; parents dread the violence that threatens their children; and young kids routinely fall prey to the glamour of gang life. Gangs are spreading across America and nationally gang homicides are climbing. Nowhere is it worse than Hollenbeck, a community where a homegrown brand of terrorism is a daily fact of life. watch