Actually, the Seveso experiment--or the accident that turns out to be an experiment--is interesting in the sense that there was a very large single exposure. It was not a continuous exposure. There's a big difference between chronic toxicity and acute toxicity.
We really didn't see very much acute toxicity in Seveso. There were animals that died. People suffered chloracne; this is the basic symptom of acute dioxin toxicity.
The ongoing study has monitored the health status of these people, and there is certainly no obvious increase of any kind of cancer. We would have seen that. There are debates back and forth about whether or not there's a subtle increase, but there certainly was no major increase.
Again, that was a single exposure. What we worry about is exposure over a long time to small amounts. If you were living near Seveso at that time, the chances are that there are no consequences.