How recreating faces from DNA can help solve cold cases

Population geneticist Mark Shriver and his team at Penn State want to make replicas of faces using solely DNA. This kind of technology, once honed, could be essential for solving cold cases involving unidentified remains. Facial reconstructions are often a last ditch effort to identify victims when other leads don't pan out, but traditional forensic sculptures are only approximations. Here's how Shriver Lab is trying to get us as close as we can to a copy machine.