It is one of the most bi zarre searches since Bin Laden. Regulators are still looking for a Waldo (star, of course, of "Where's Waldo?") so they can pin the blame on someone -- and any old, fumbling fat-fingered trader will do -- for the near catastrophic decline in stock prices last Thursday. Now, in the latest apparent development in this case, The New York Times said the government is interrogating a trader -- probably at Gitmo -- about "heavy selling in the market for stock index futures." That's all well and good. Scapegoats are what makes America the land...