A Pulitzer Prize-winning columnist says there have been 4 pandemics in the past 20 years — and crises will happen more frequently unless something changes about income inequality

Thomas Friedman is pretty much the expert on globalization. He’s authored books that have sold hundreds of thousands of copies worldwide, he writes a column for the New York Times, and he’s won three Pulitzer Prizes for his deft observations on global unrest, international commerce, and the changing relationships of the world’s superpowers.