Circuitry, it was there. there was materiel inside the bombs to act at shrapnel. ask yourself, for example, if these were intended just to scare, why put something inside the bombs that you can't see? so that's an important factor. now, there were flaws, thank heavens, in the way they were designed. we're not going obviously say what those are because we don't want to give tips to would-be bomber about how to improve their work, but they think they were intended to go off, and just were you know, fortunately not properly designed or constructed. >> and dan goldman, ask you here in new york as ...