In 1942 Los Angeles fired 1,440 anti-aircraft rounds at nothing
by Ellsworth Toohey from Boing Boing on (#76K3D)

At 2:25 a.m. on February 25, 1942 - less than three months after Pearl Harbor - air raid sirens sounded across Los Angeles County. A total blackout was ordered. At 3:16 a.m., the 37th Coast Artillery Brigade opened fire with .50-caliber machine guns and anti-aircraft shells. - Read the rest
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