The embattled chair of the U.S. Nuclear Regulatory Commission resigned this week. It's a victory for Republican oversight on Capitol Hill, women and sound science. But it's also a lesson in the futility of Bush-era bipartisanship. When you cut deals with bullies, it's a timeless and bitter recipe for more bullying. Gregory Jaczko served as appropriations director and science policy adviser to Senate Majority Leader Harry Reid, D-Nev., before joining the NRC in 2005. The anti-nuclear advocate was sworn in by his brass-knuckled boss and protector, Reid, who pressured the Bush administration to appoint him as a condition for moving...