"To construct the virus, the researchers say they followed a recipe they downloaded from the internet and used gene sequences from a mail-order supplier. " If anyone comes across this "recipe" on the internet for making viruses, I would be highly interested in seeing it. This story is all over the place and it makes me nervous, because someone is going to get the motivation to start making virus in their garage, and that can lead to bad things. I work with viruses, but they are replicative-defective, so they don't get very far. This is different and very interesting indeed. BBC News | SCI/TECH | First synthetic virus created |