Can "big data" from mobile phones pinpoint pockets of poverty? And a news roundup

Joshua Blumenstock discusses patterns of mobile phone use as a source of "big data" about wealth and poverty in developing countries; David Grimm talks about gene drives, helpful parasites, and electric roses. Hosted by Sarah Crespi. [Img: A.A. JAMES] Learn more about your ad choices. Visit megaphone.fm/adchoices