Jim Ryan, ABC News correspondent

Four customers of McDonald's have filed a lawsuit alleging the fast-food chain does not use rib meat in its McRib. Jim Ryan, ABC News correspondent, explains the lawsuit and McDonald's defense.

Start your morning off right with Arizona's Morning News. You'll be informed with the very latest on what's going on in the Valley, Arizona, nation and throughout the world. Jim Sharpe is a native Arizonan. LaDona Harvey brings decades of experience.