Air Raid Precautions Blamed for Grain Elevator Fire The village of North Branch, Mich., is split by angry discussion as to whether or not its too perfect air raid precautions caused the destruction by fire of the village’s only industry. The Harper Elevator burned on April 18 with a loss of $100,000. Because three citizens, after taking an F. B. I. course in civilian defense, persuaded the village to adopt a rule not to blow the fire siren unless there was an air raid, it was necessary to summon the volunteer firemen by telephone. By the time they arrived, the fire was out of control. One faction in the village argument contends that the firemen got there as soon as though siren-summoned; the other says the air raid precaution caused a fatal delay.