Another possibility, which I find ever more credible, is that he is not a person but a committee of A.D.H.D. sufferers, all of whom have been issued with extra caffeine and a Spotify account.
But with each passing day that the allies fail to find any "smoking gun" evidence of terror weapons in Iraq, the carefully calibrated judgments of Mr. Blix and his inspectors are looking ever more credible.
But was there ever a credible basis for carrying that battle to Iraq? Don't misunderstand -- we should all be glad to see the Iraqi people freed from Saddam Hussein's tyranny, and the defeat of Iraq did spell the demise of the world's No. 4 state sponsor of international terrorism (Iran, Syria and Sudan all have more blood on their hands in the last decade).
Reporters around the country, myself included, have been writing stories like this for decades, in what almost seems a can-you-top-this challenge to find the most incredible person ever considered credible by police or by prosecutors, who invariably point out the unfairness of expecting them to find informant candidates in the local church choir.
In doing so, it will no doubt emerge over the next decade as an ever more credible and worthwhile partner for industry in the future discovery of new medicines.
Green opponents to GM crops claim they pose a risk to health, though no research has ever produced any credible evidence to back this point.
Try as he does to set a civil example — as have most recent American presidents and vice presidents of both parties with the conspicuous exception of Dick Cheney — no political figure can ever be a credible leader of a civility crusade.
Adapted by William Boyd from his own novel, this tale of secret service intrigue flipped back and forth between the war years and 1976 without ever establishing a credible device for making the transitions.
The comments are likely to have little if any domestic political repercussions for Mr. Romney, but Obama campaign officials charged that they could hurt Mr. Romney's chances to ever play a credible role in the Middle East peace process, a complicated and highly charged undertaking where even mild nuances in language are microscopically examined and can take on far larger significance.
Obama campaign officials criticized Mr. Romney's latest remarks, describing them as the sort of thing that could make it more difficult for Mr. Romney to ever play a credible role in the Middle East peace process, which depends on having buy-in not from just Israelis but from Palestinian officials as well.
