The National Journal's "Energy and Environment Expert Blogs" is hosting an online debate about taxpayer-backed nuclear power loan guarantees. Voices opposing such a federal subsidy for new reactors span the political spectrum, from environmental groups to conservative think tanks. Opponents and skeptics of new reactor loan guarantees include: former NRC Commissioner Peter Bradford; Ryan Alexander, President of Taxpayers for Common Sense; Janet Larsen, Director of Research, Earth Policy Institute; Henry Sokolski, Executive Director, Nonproliferation Policy Education Center; Ellen Vancko, Nuclear Energy and Climate Change Project manager, Union of Concerned Scientists; David Kreutzer, Senior Policy Analyst in Energy Economics and Climate Change, Heritage Foundation; Bill Snape, Senior Counsel, Center For Biological Diversity; and William O'Keefe, CEO, George C. Marshall Institute.