OAK RIDGE, Tennessee, Nov. 15 -- The U.S. Department of Energy's Oak Ridge National Laboratory issued the following news release: The American Nuclear Society has recognized Arnold Lumsdaine and Walid Metwally, group leaders within the Fusion and Fission Energy and Science Directorate at Oak Ridge National Laboratory, with ANS Presidential Citations. ANS Presidential Citations are awarded to individuals who have demonstrated outstanding effort for the benefit of the Society. The citations wil  more