210 AT or 309 AT?

[stevebowers]

I think 309 sounds more likely. That means putting the more successful VAH clade back a few years, to 397, say. Genetic modification of humans is likely to be a long and difficult process, with many semi-successful attempts; the Vac-suckers are one of these, of course. And some downright failures, which we haven't talked about much, but which would have been political dynamite at the time.

Edit - done.