Can cargo drones solve air freight's logjams? A drone startup says its big vertical-takeoff flier would be quick to land, load, and take off again

Ground crews remove cargo from the MD-11 and get the many packages into delivery trucks and small planes as quickly as possible before the start of the morning rush of cargo from Amazon, Walmart, and other online retailers scrambling to deliver Christmas gifts. Meanwhile, construction is snarling traffic on the I-10 freeway into Los Angeles, and because of the fog, the I-15 is no better. Similar messes are often seen at choke points throughout the world, where the package-delivery business faces a raft of problems.