Today the Impossible Burger 2.0 arrives in restaurants around the country. The company Impossible Foods won all kinds of "best of CES" awards at the big tech show in Las Vegas last month for creating a plant-based meat replacement that smells, tastes and looks like real beef. There's also all kinds of science going into growing meat from real meat cells. Molly Wood speaks with Larisa Rudenko, biotechnology expert and visiting scholar in emerging technology at the Massachusetts Institute of Technology. She says climate change, animal welfare and human health are all driving huge investment in meat-replacement technologies. Today's show is sponsored by Kronos, Pitney Bowes and Mozilla Firefox.