The Department of Energy's goal is to advance national, economic and energy security in the U.S.; to promote scientific and technological innovation in support of that goal; and to ensure environmental cleanup of the national nuclear weapons complex.
A part of a series produced by The Huffington Post in celebration of #GivingTuesday, which will take place this year on December 3, Kathy Calvin and Henry Timms vouch that we are living in a new era of philanthropy.