>> how are you going to grow your meat? >> the new tank. >> no flavor, no color. scientists had to mix in bread crumbs, caramel coloring, saffron and beet juice. and the texture of a scallop. >> slimy. also, it takes 20,000 of those little gross slimy strands that you saw to make a five-ounce hamburger. i don't know. >> i don't know. it's a start. a start. >> ew. >> i don't think a finished product yet. still to come. a lot of analysis about the bachelorette. none like this one. >> we'll be joined by the commish in a few minutes for his expert breakdown of last night's finale. you are watching "world news now." >> announcer: "world news now" continues after this from our abc stations.