Milk from Genetically-Modified "Spider-Goats" is Source of Valuable Silk

Guest: Justin Jones Spider silk is stronger than steel, super lightweight and surprisingly elastic. If we could make it in bulk, it it’d be great for everything from parachutes and sports gear to replacement tendons and ligaments. Which is why the US Navy has been investing for years in a lab at Utah State University that’s figured out how to coax the building blocks of spider silk out of goats and alfalfa and even E. coli bacteria.