i'm phil torez, i'm an entomologist. i do much of my research in this territory. they've tested the water, they've tested the sediment. i'll share my findings with marita davison. she's an environmental biologist. >> what size of an area are we looking at here? >> and, lindsay moran, a former cia analyst. one of them was at macy's, the other was at tiffany. so now, what can you say? that's our team, now lets do some science. hey guys welcome to techknow, i'm phil torres joined by lindsay moran and marita davison. as you guys know, when i do my science it's all spiders and butterflies. but when i'm in the field i love going to peru. the rainforest there is amazing but the last time i was there and i looked out the window flying in and i noticed a huge section of forest was missing. you have to be talking about the devastating impacts of gold mining, of illegal gold mining that's been hitting peru, my home country bolivia, and the entire region really it's been happening for the past few decades. phil since you first brought this story to techknow the question we've