Americans are skittish about drones delivering their packages

How long will it be, do you think, until companies such as Amazon start delivering packages to you by drone? If that prospect seems fantastical to you, you're not alone. According to a survey published Tuesday by the U.S. Postal Service, 57 percent of people are either neutral about it or think it's a bad idea. Seventy-five percent of people think drone delivery is five years away at best; the rest think it will take even longer, if it happens at all. There are some good reasons to think this timeline is accurate, which we will get into below. But the survey also reveals something else: Our skepticism of the technology may be a factor.