Spy balloons that can see a phone in your hand will soon 'orbit' over North America. Here's how World View's technology works and what else its new CEO has planned.

· World View Enterprises is a startup based in Tucson, Arizona, that launches surveillance balloon-craft into the stratosphere.
· The company says its Stratollites, as the devices are called, can take photos with a quality of five centimeters per pixel. That's many times better than commercial satellites and good enough to...