Not even three months after the Japanese attack at Pearl Harbor, Americans on the west coast thought they were under attack. Sirens sounded across Los Angeles in the early morning hours of Feb. 25, 1942. Within minutes, searchlights swept the sky while thousands of air raid wardens rushed to their posts. Then anxious gun crews unleashed hell. For nearly an hour, anti-aircraft batteries fired a massive barrage that shook windows and rattled nerves across the city. Residents in bathrobes and