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Kathryn Higley

Distinguished Professor of Nuclear Science and Engineering, Oregon State University

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An M1A1 Abrams Main Battle Tank crew with Company A, 4th Tank Battalion, fires its 120 mm main gun during the company’s pre-qualification tank gunnery at Range 500, Aug. 4, 2015. The live-fire exercise tests tank crews on their ability to work together on target acquisition and accuracy. (U.S. Marine Corps Photo by Lance Cpl. Julio McGraw/Released)

The US will send depleted uranium munitions to Ukraine — a health physicist explains what that means

Kathryn Higley