December 2: First case of Omicron variant in the U.S. has been detected. Fourth student dies from school shooting in Michigan. MLB faces first lockout in a quarter century. Chicken tender shortage.

<p>The first case of the Omicron variant in the U.S. has been detected — an inside look at the new measures being taken to fight the spread. Plus, a fourth student has died from that shooting at a high school in Michigan. Also, Major League Baseball owners are locking out their players after months of failed talks toward a new labor contract. And, chicken tenders become the latest item to face a shortage due to the pandemic.</p>