ACanadian political scientist has urged his country's government to prepare for the possibility of the United States becoming a right-wing dictatorship before 2030. In an op-ed published in The Globe and Mail on Friday, Thomas Homer-Dixon, an executive director of the Cascade Institute at Royal Roads University in British Columbia, warned his country had to prepare for the worst-case scenario. "By 2025, American democracy could collapse, causing extreme domestic political instability, including widespread civil violence," Homer-Dixon wrote. "By 2030, if not sooner, the country could be governed by a right-wing dictatorship. We mustn't dismiss these possibilities just because they seem...