It's a sign of the nation's fraught state of mind that many seriously believe this week's unlikely plotters could have toppled democracy. BERLIN---Germany is on edge. Early Wednesday, thousands of balaclava-clad German police officers fanned out across the country, arresting 25 people and seizing weapons to upend what authorities described as a diabolical plot to overthrow the country's government and reinstate the monarchy. The group's "military arm" was surreptitiously building "a new German army," the lead prosecutor on the case said. A day later, however, the case looks more like the script of a Monty Python episode thant a sequel...