Once again, Americans have been stunned by our government's release of warnings about terrorist threats. Most recently, the danger highlighted has been that al-Qaeda will attack cities using radioactive materials mixed into explosives, or so-called "dirty bombs." Here's a story sure to ride for more than one news cycle, and therein lies a tale -- a tale of the Bush administration and what it was really up to during all the recent alerts; or, if you prefer, a tale of classic intelligence snafus and misconceptions. Whichever way you take the story -- and the two interpretations aren't mutually exclusive -- it does not reflect well upon our leaders.