crystal is a molecular neuroscience. she goes to the streets of seattle and santa cruz for a look at how science might stop crime before it happens. lindsay is an ex-cia operator.

crystal is a molecular neuroscience. she goes to the streets of seattle and santa cruz for a look at how science might stop crime before it happens. lindsay is an ex-cia operator. tonight she shows us how mushrooms might one day replace styrofoam packages. i'm phil torres and i'm an entomologist. i study insects in the rain forests of peru. that's our team. now, let's do some science. >>> it has been another fantastic week of science on the road. we've got crystal, lindsay and rita here. we're going to start with you. you were basically a very high-tech firefighter for a week. tell me about this. >> that's right. i was on a story that followed how we use unmanned aircraft to fight the rim fire at yosemite. let me show you. here it is. it's a very unusual-looking piece of technology. it almost looks like an alien insect, and they have it in a hangar. essentially they fly it up to yosemite, and it's eyes in the sky following the rim fire and generating information for action on the ground. so let's check it out. the size a