Warrant Officer Jorge Roman pins an electronic warfare collar insignia onto Spc. Raffe Grigory during the Electronic Warfare Class No. 001-13 graduation and cresting ceremony, Dec. 13, 2012, at Snow Hall, Fort Sill, Okla. It was the first time the new EW crest has been pinned on graduates. Warrant officers in the EW WO Basic Course performed the pinning.