A contract employee at a nuclear material cleanup site in Oak Ridge, Tenn. was charged on July 19, 2007, with stealing classified information about enriching uranium to sell to foreign governments.
Sixty-five-year-old Roy Lynn Oakley is accused of selling the sensitive material to undercover FBI agents.
Officials said none of the data ever made it out of the country or was transmitted to criminal or terror groups.
Oakley pleaded not guilty today in federal court for two counts of possessing hardware used in uranium enrichment.
He could face a maximum of 20-years in prison and a $500,000 dollar fine.