A U.S. Army specialist was just arrested and charged with passing technical information on M1A2 Abrams to the Russians and attempting to give more to who he believed was a Russian agent but looks to have been an undercover.
www.justice.gov

Active-Duty Soldier Arrested and Charged with Espionage and Export Violations
Taylor Adam Lee, 22, of El Paso, Texas, was arrested today on charges of attempted transmission of national defense information to a foreign adversary and attempted export of controlled technical data without a license.