OKLAHOMA CITY (AP) _ Residents in a central Oklahoma community may think the sky is falling later this month, but military officials say they have nothing to worry about.
State officials confirmed Thursday that the U.S. Army will dump powdered egg whites, grain alcohol and other substances on the town of Goldsby as part of a mock bioterrorism attack.
Powdered clay, polyethylene glycol and Bacillus thuringiensis, an inactive pest control, also will be dropped, officials said.
The Army and the Environmental Protection Agency will conduct the Homeland Security Chemical/Biological Umbrella.
Goldsby residents started receiving letters explaining the procedure this week, state Environmental Quality Department spokeswoman Monty Elder said.
The Army will conduct tests over ``rural areas southwest of Oklahoma City, the letter states. The airplanes will release ``small amounts of harmless materials'' over the area, located in McClain County.
The materials are intended to mock chemical or biological agents and test the ability of weather radar to detect them.
``These materials were selected because they are harmless to humans and the environment and because their physical properties allow radar to 'see' them just like materials that might be used in a terrorist attack,'' according to the letter.
The Oklahoma City area was chosen because of its sophisticated weather radar networks, according to the letter.