Amazon, the multi-trillion dollar e-commerce monolith, seemingly cheaped out on keeping a key feature installed on its delivery six-propeller drones. And predictably, this backfired almost immediately. On a rainy December day at the company's testing range in Oregon, not one but two Prime Air drones suddenly stopped spinning their propellers mid-flight and plummeted some 200 feet to the ground. The crashes, which destroyed both aircraft, happened within minutes of each other. And now, Bloomberg