The Democratic presidential candidate Elizabeth Warren thinks she knows how to prevent the next economic crisis. Warren, who says she spent years before the 2008 financial crisis warning Congress and regulators of the faulty loans that would eventually collapse, wrote a post on Medium on Monday cautioning about another "coming economic crash." "When I look at the economy today, I see a lot to worry about again," Warren said. "And I see a number of serious shocks on the horizon that could cause our economy's shaky foundation to crumble." Here are the three things Warren says could cause the next...