U.S. Energy Secretary Ernest Moniz on Monday defended his agency's controversial move to consider processing spent nuclear fuel from Germany at South Carolina's Savannah River Site nuclear facility, saying the proposal is consistent with U.S. efforts to secure highly enriched uranium across the globe.

The United States has for years accepted spent fuel from research reactors in various countries that was produced with uranium of U.S. origin as a part of U.S. nuclear nonproliferation policy and treaties.

Receiving the German spent fuel would be "very much in line with our mission of removing the global danger of nuclear weapons material," Moniz told reporters before a visit to the South Carolina nuclear facility.