USAID also has a similar channel, the Direct Channel, established in 2011. Unlike the Dissent Channel, this is open to foreign national employees of USAID, and contractors. Several science-oriented federal agencies also have dissent channels: the Nuclear Regulatory Commission (the "Differing Professional Opinion" established after the Three Mile Island accident), the U.S. Department of Energy (process created in 2005), NASA (process created after the 2003 Space Shuttle "Columbia" disaster), and the U.S. Food and Drug Administration Center for Drug Evaluation and Research (process created in 2004 and revised in 2010).