An American official has told Newsweek magazine that the possibility of further arrests in the espionage case of United States Navy flight officer Edward Lin should not be ruled out. Last Sunday, the US Navy reported the arrest Lt. Cmdr. Lin, who faces two counts of espionage and three counts of attempted espionage, among other charges. Aside from a three-page, heavily redacted charge sheet released by the Navy, almost nothing is known about this case. However, as intelNews opined earlier this week, there are several clues that point to the seriousness of the charges against Lin, and their potential ramifications for US national security, which are likely to be extensive.