Why are the world's richest men drawn to the ocean floor? The latest to take the plunge is Amazon CEO Jeff Bezos, who helped send robots three miles below the surface to find lost rockets that propelled astronauts to the moon.
Video by Reuters
The Walking Dead Podcast Listen to an early release of Slate's recap of Episode 12, "Remember."
How to Mess With Surveillance Why you should search for random people on Facebook, and other tips.