Dioxin down the memory hole?

There was a story, I'm almost certain on CBS News (at this link, but the Google cache doesn't help, and other CBS News stories are not helpful), that the poisoning of Yushchenko is very suspicious as the speed that the symptoms appeared - almost immediately after the alleged poisoned meal - is not consistent with dioxin poisoning. The original story appears to have disappeared down the memory hole, perhaps more indication that what we're dealing with is not poisoning but a sophisticated American-run propaganda campaign to have the American puppet elected in the Ukraine.