An Afghan national who helped U.S. troops in his home country has been convicted of molesting a 3-year-old girl at a Marine Corps refugee camp in Virginia. Mohammed Tariq, 24, was convicted by a federal jury on charges of abusive sexual contact, the Department of Justice announced this week. Tariq was spotted on Sept. 22 around 9:10 p.m. by four Marines sexually touching the young girl, according to court documents. The girl tried pushing Tariq away but he grabbed her arm and forced her to stay where she was, prompting the Marines to intervene and detain Tariq. The incident took place at Camp Upshur, on Marine Corps Base Quantico. The girl and Tariq are not related, officials say, though both he and the girl, along with her family, were recently evacuated from Afghanistan and brought to the United States. U.S. troops and allies evacuated over 100,000 Afghans before withdrawing from Afghanistan …