Amazon CEO Jeff Bezos appeared on CBS television Sunday, revealing to viewers of 60 Minutes that his company is testing drones that could deliver packages in as little as half an hour after an online purchase. With the help of buckets, the drones are designed to handle loads of up to five pounds, which account for about 86 percent of Amazon deliveries.

"It will work, and it will happen, and it's gonna be a lot of fun," Bezos said of the company's so-called Prime Air project, while predicting the drones will take to the skies within four or five years.

Technical, safety, and logistical hurdles aside, such a scheme would actually be illegal in the U.S. today without the approval of the