Federal authorities arrested Sinh Vinh Ngo Nguyen on Friday . Eimiller did not detail the alleged activities , and the indictment did not spell out any specifics of the alleged actions . Nguyen , 24 , also is known as Hasan Abu Omar Ghannoum , the FBI said . The arrest came after a months-long investigation by U.S. and Vietnamese officials that began in late November when they received information from an informant who had been working with the North Vietnamese.
Federal authorities arrested Sinh Vinh Ngo Nguyen on Friday . Nguyen , 24 , also is known as Hasan Abu Omar Ghannoum , the FBI said . The arrest came after a months-long investigation by U.S. and Vietnamese officials that began in late November when they received information from an informant who had been working with the North Vietnamese.