When President Barack Obama officially named Elena Kagan as his nominee to replace Supreme Court Justice John Paul Stevens, he called the solicitor general and former Harvard Law School dean "one of the nation's foremost legal minds." Many other American minds, meanwhile, were focused on a less lofty matter. They wanted to know about her sexuality. The origin of that question, though, isn't what some might expect. Speculation about Kagan's sexual orientation has frothed just beneath discussions about her qualifications ever since she emerged as a likely court pick. Obama's announcement this morning brought it to the fore. Reporters peppered...