Craig Letch, left, director of quality assurance for Beef Products Inc., introduces the product known as lean, finely textured beef — “pink slime” to detractors — and the cuts from which it is made to (l r) Kansas Gov. Sam Brownback, Texas Gov. Rick Perry, Iowa Gov. Terry Branstad, South Dakota Lt. Gov. Matt Michels and Nebraska Lt. Gov. Rick Sheehy, during a tour of the South Sioux City, Neb., plant where the beef additive is made.