WASHINGTON, Sept. 30 -- The U.S. Department of Justice issued the following news release: * * * Latvian Broker Pleads Guilty to Conspiring to Illegally Export U.S. Aircraft Technology to Russia * Latvian national, Oleg Chistyakov, aka Olegs Citsjakovs, 56, pleaded guilty today for his role in a years-long conspiracy to circumvent U.S. export laws by filing false export forms with the U.S. government and, after Russia's invasion of Ukraine in February 2022, continuing to procure and sell soph  more