La Nina winter setting up, NOAA says. Here's what that means for US

The influence of La Niña is expected to dominate weather conditions from December through February, according to NOAA. This often translates to wetter conditions in the northern tier of the country, while the southern tier may face drier-than-average weather.

Titan submersible Coast Guard hearings begin this week

For the next two weeks, the Coast Guard will be question witnesses about what went wrong with the Titan sub, which imploded and killed five people last summer in the depths of the Atlantic Ocean.