In February I wrote an article in Science about what Craig Venter’s up to these days. In the late 1990s Venter made his mark by challenging the government human genome project to a race, promising to beat them to the full sequence for a fraction of their budget. Ultimately the race was a tie, and before too long Venter had been shown the door from his company. (I highly recommend James Shreeve’s upcoming The Genome War for all the grisly details.) But he had also been working with the genomes of other organisms–particularly microbes–for years, and he went back to his first love. Not surprisingly, he was soon making headlines again, by setting out to build a microbial