Abaco, Bahamas, April 13, 1999: Thirty-six scientists gathered on an isolated Bahamanian island last month for three days of off-the-record, freewheeling discussion and debate about cancer vaccine research. They left convinced that the meeting advanced the pursuit of vaccines to prevent and treat cancer. And Elliot L. Richardson, an architect of the “War on Cancer” said he is “excited” by the existence of a vaccine to prevent cancer and the prospect of more.