<p>This undated photo provided by the National Nuclear Security Administration shows the last B53 nuclear bomb. It was dismantled this past week, just outside Amarillo, Texas. It's a milestone in efforts to reduce the number of nuclear weapons.</p>
Credit National Nuclear Security Administration / AP
This past week, the U.S. dismantled the last of its largest nuclear bombs, the B53.
This was a Dr. Strangelove bomb, conjuring up images of armageddon and apocalypse. At the same time, one of the smallest warheads was also removed from the nuclear arsenal.
These are steps the U.S. is taking apart from its arms control agreements with Russia. And thousands more American nuclear weapons are slated for destruction in a process that could take a decade or more.
<p>A disputed plaque in San Francisco's Mission District features Laguna Dolores. The most recent version of a map of the city's underground waterways removes the lagoon, as it was considered geographically impossible.</p>
Credit Amy Standen
Two creek geologists — people who study underground waterways — recently found themselves in the basement of a porn studio in San Francisco. Janet Sowers and Christopher Richard steered clear of the actors who were filming for Kink.com, an online fetish pornography studio that happened to have a stream running through its basement.
It was almost two years ago now that Justin Timberlake, while filming The Social Network, cemented his place in the NPR collective heart by being photographed wearing our logo across his chest like a tattoo, only fabric, and temporary, and less painful. (Back then, by the way, that shirt wasn't in our shop. Now, you can have one! It's with our "best-sellers," even now.)