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.
Federal authorities arrested Sinh Vinh Ngo Nguyen on Friday . Nguyen , 24 , also is known as Hasan Abu Omar Ghannoum , the FBI said . He was taken into custody as he was boarding a bus for Mexico , the FBI said .