"In theory, a fusion generator produces no carbon dioxide emissions, carries no risk of nuclear weapons proliferation, generates part of its own fuel and operates more safely than just about any other power source. And although fusion experiments have a long list of missed deadlines and shifted goalposts, scientists insist that practical fusion is no longer a mirage receding into the distance ... However, in an age of austerity, policymakers have to set priorities, and betting on something that only works in theory is a tough sell, especially when the gears of government are stuck in neutral." (Quoted from article)