Amazon's business is built on three basic concepts: faster delivery, greater selection, and cheaper prices.
In service of that, it has built enormous warehouses staffed largely by robots that shuttle around, pulling goods out of bins at remarkable speed. It can take just a matter of minutes to go from order to shipment.
And lately it's pursuing a program where Amazon goes directly into manufacturers and manages their logistics and online retailing.
After Hurricane Sandy, the south shore of Staten Island looked like it had been hit by a tsunami. The storm surge devastated whole neighborhoods suddenly, in a matter of hours. In the year since the storm, some families have been rebuilding their homes and their lives. Others are ready to sell their flood-damaged properties and move on.
Joe Salluzzo lives in a neighborhood called New Dorp Beach, a few blocks from the ocean. He rode out the storm on the second story of his brick bungalow, which he's been repairing himself ever since.
Revelations about NSA spying have left people wondering about the privacy of their digital data. But what about the privacy of their faces?
The movies make facial recognition look easy: In the 1998 film Enemy of the State, a team of NSA agents simply freeze a surveillance tape, tap some keys and identify the face a few computer beeps later.
Messiah United Methodist Church in Springfield, Va., is unusually busy for a Thursday morning. It's not a typical time for worship, but parishioner Stacy Riggs and her husband have come for something a little different: a medical screening.
It's really only a sliver of time when humans build the bulk of their skeleton. At age 9, the bones start a big growth spurt. And by the time puberty ends, around 14 or 15 years old, the adult-sized skeleton is all but done, about 90 percent complete.
But doctors say a lot of children aren't getting what they need to do that. Calcium and vitamin D are essential, sure, but so is lots of time jumping and running.