How misguided that view seems now, with the advantage of decades of experience. The Yankee Nuclear Power Station in Rowe, Massachusetts, took 15 years to decommission—or five times longer than was needed to build it. And decommissioning the plant—constructed early in the 1960s for $39 million—cost $608 million. The plant’s spent fuel rods are still stored in a facility on-site, because there is no permanent disposal repository to put them in. To monitor them and make sure the material does not fall into the hands of terrorists or spill into the nearby river costs $8 million per year. That cost will continue for an unknown number of years. David Lochbaum of the Union of Concerned Scientists estimates that even without the ongoing costs of monitoring and security, the average reactor now costs about $500 million to deactivate.