Yushchenko's poisoning is officially a massive dosage of dioxin. We normally think of long-term, lower-dose exposure (Agent Orange, Love Canal, etc.). Interesting and weird effects. Karl Rove is no doubt laughing at how ridiculously blunt those Russian-speaking Ukrainians have been---no crowds on the street in this country to protest the election.
Sushi? Oh, that's what the government had claimed Yushchenko's problem had been due to. Bad sushi.