Question: The Department of Energy sponsors a laboratory that is currently working on magnetic fusion devices based on what principle?
Sentence (from "Oak Ridge National Laboratory"): Oak Ridge National Laboratory (ORNL) is an American multiprogram science and technology national laboratory sponsored by the U.S. Department of Energy (DOE) and administered, managed, and operated by UT-Battelle as a federally funded research and development center (FFRDC) under a contract with the DOE.
Relevant evidence: Yes