Mission-creep may have been inevitable in a U.N. operation that depended on the resources of member states for an international intelligence-gathering operation, but its exposure means that UNSCOM chief Richard Butler must be replaced if there is to be any chance for further American participation in the inspection teams. That of course may be academic -- since the air strikes, theres been no sign that Baghdad plans to allow UNSCOM back into Iraq. Once again, early on Thursday, a U.S. fighter in the no-fly zone fired on an Iraqi jet after being illuminated by radar. No hits were reported.