The city of Cooper City, Fla., has given itself the power to seize residents' personal property in times of emergency. Officials deemed this new law necessary because of what is expected to be a busy hurricane season. But don't worry, they say. The law would never be enforced unless there were no other options – presumably meaning that the city could not persuade private citizens to permit the government to borrow, rent or buy their equipment. Think of it as eminent domain for generators, power tools, trucks and anything else local czars determine they need. Not surprisingly, this plan has...