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US Navy NIC Machinist's Mate st Class Alec Rohrer from Genesee Pa. demonstrates an IMPD Radiacmeter to Vice Adm. Scott Van. en PACIFIC OCEAN March Machinist's Mate st Class Alec Rohrer from Genesee Pa demonstrates an IM Radiacmeter to Vice Adm Scott Van Buskirk commander of th Fleet aboard the aircraft carrier USS Ronald Reagan