THE perplexing mystery of why Keith Olbermann acts like a twitchy, hopped-up geek on his MSNBC show has been solved. The New Yorker's Peter J. Boyer reports the TV loudmouth "has been given a diagnosis of Wittmaack-Ekbom's syndrome, also known as 'restless legs syndrome' (and also 'the kicks,' 'Jimmy legs' and 'the jitters'), a neurological disorder that produces a prickling, itching or crawling feeling in the legs." Known as a women's ailment because it strikes twice as many women as men, the syndrome has stirred controversy among doctors who don't agree whether it's even real or instead caused by various...