An NSA contractor nicked huge amounts of data from government computers over two decades, a court is expected to hear.

Harold Martin is also accused of stealing thousands of highly classified documents, computers, and other storage devices during his tenure at the agency.

It’s not known exactly what Martin allegedly stole, it appears that the recently-leaked hacking tools used by the agency to conduct surveillance were among stuff he pinched. .

Prosecutors will on Friday charge Martin with violating the Espionage Act. If convicted, he could face ten years in prison on each count which probably means he will never see daylight again.

Originally it was thought that the case was just a felony theft and a lesser misdemeanor charge of removal and retention of classified information but it looks like there was something a little more serious going on.

According to a memo penned by US Attorney Rod Rosenstein, the contractor presents a “high risk of flight, a risk to the nation, and to the physical safety of others.”

The memo says that if he is released from custody, he “may have access to… a substantial amount of highly classified information, which he has flagrantly mishandled and could easily disseminate to others.”