Al-Qaeda is busy perfectly its “body bombers”.  Remember Nigerian Umar Farouk Abdulmutallab, the Yemen trained al-Qaeda operative?  He tried to blow up Delta (Northwest) Flight 253 from Amsterdam to Detroit last Christmas with a compound called pentaerythritol tetranitrate, better known as PETN packed in a soft plastic container (possibly a condom) hidden in his groin.  [...]