Facebook announces major changes to its news feed that will prioritize posts from friends over those from businesses or third parties. And Peter Thiel, the man who funded Hulk Hogan's lawsuit against Gawker, is reportedly now trying to buy the company.

Plus Wal-Mart coming off a roller coaster day with employee bonuses and layoffs. We break down why the retailer made both of these announcements on the same day, and what it means for its image.

And a look at the hottest cars at CES. From electric vehicles to self-driving technology to connected vehicles, we break down all the coolest unveils.