Rep. Tina Orwall talks about how technology and science can help put rapists behind bars . . . if only we'll make use of them.

DNA evidence gathered from victims of sexual assault can be law enforcement's most effective tool in identifying rapists, solving cold cases, and preventing future attacks. But when Washington state rep. Tina Orwall toured a police evidence locker several years ago, she saw untested kits gathering dust and stacked high on shelves. Her subsequent research led to a disturbing discovery: Washington alone had more than 6000 untested kits, and nationwide nearly half a million kits had never been tested. In today's Capitol Ideas podcast, she'll talk about her successful efforts to have those kits tested and the results used to ID rapists, and to prevent the situation from repeating itself.