Donald Trump Says America Is the Greatest Threat to Western Civilization

David Ignatius: Donald Trump's criticism of the United States is misplaced and can be very harmful to us. "The biggest threat to our future in my judgment does not lie outside our borders, it lies within America," he says. Unless we can get our economy going reliably, strongly, unless we can make people feel they're all part of one country that they believe in, we're in trouble."