In July 2011, the NASA OIG recovered a Pratt & Whitney RL-10 rocket engine valued at approximately $200,000 that had been advertised for sale on an Internet auction site. The owner advised investigators that he purchased the engine from an individual who had received it from an unknown NASA employee. The 1960s-era RL-10 was the United States' first rocket engine fuelled by liquid hydrogen. The RL-10 is subject to the International Traffic in Arms Regulations (ITAR) and, accordingly, may not be sold or released to the public Read more (PDF)