Artificial intelligence can draw cat pictures and write emails. Now the same technology can compose a working genome. A research team in California says it used AI to propose new genetic codes for viruses-and managed to get several of these viruses to replicate and kill bacteria. The scientists, based at Stanford University and the nonprofit...

This is today's edition ofThe Download,our weekday newsletter that provides a daily dose of what's going on in the world of technology. AI-designed viruses are here and already killing bacteria Artificial intelligence can draw cat pictures and write emails. Now the same technology can compose a working genome. A research team in California says it...