Did Ted Bundy never drown a cat?
Espionage Statute of Limitations
Although federal statute USC 3282 provides for a five-year statute of limitation for the vast majority of federal crimes, this statute of limitations does not necessarily stand in the case of espionage prosecution. It is generally agreed by legal scholars that acts of espionage can be prosecuted for at least ten years after the alleged act. Certain executive acts and extenuating factors may provide for prosecution after an even longer period of time.
SOURCE https://www.federalcharges.com/espionage-laws-charges/