end of an era ...1 less source of u308

From the U.S. Dept. of Energy website:

WASHINGTON – U.S. Energy Secretary Ernest Moniz today announced the final shipment of low enriched uranium (LEU) derived from Russian weapons-origin highly enriched uranium (HEU) under the 1993 U.S.-Russia HEU Purchase Agreement, commonly known as the Megatons to Megawatts Program. Under this Agreement, Russia downblended 500 metric tons of HEU, equivalent to 20,000 nuclear wearheads, into LEU. The resulting LEU has been delivered to the United States, fabricated into nuclear fuel, and used in nuclear power plants to generate nearly ten percent of all U.S. electricity for the past fifteen years, roughly half of all commercial nuclear energy produced domestically during that time.