Joining us from Washington is Stephen Power, reporter for The Wall Street Journal covering energy and environmental issues. He's written recently about the Obama administration's energy priorities as reflected in the new budget.

Also from Washington, we're joined by Edwin Lyman, senior scientist in the Global Security program at the Union of Concerned Scientists and former president of the Nuclear Control Institute.

And from Madison, Wisconsin, is Paul Wilson, professor of nuclear engineering at the University of Wisconsin-Madison. He chairs the Energy Analysis and Policy Program of the Nelson Institute for Environmental Studies at the University of Wisconsin.