Do you seriously believe that the MSM would not have pushed back against ANYTHING the Bush admin said about WMD’s? If they found a cache of atomic bombs, the media would still would have found an excuse to say it didn’t matter, i.e., the Bush admin had not claimed that Iraq possessed atomic bombs in the first place.
I agree they would have pushed back - but if Bush himself had STRONGLY defended himself (not just a half hearted statement or two) they would at least have had to report it.