We are living in the age of revolution, where economic and technological change is happening so fast it creates anxiety that spills over into politics. Populism rises along with scepticism about globalization and even democracy itself. If we don't cherish what we have, we'll lose what has been one of the great, great periods of progress in human history, says CNN host and bestselling author Fareed Zakaria. He is one of the most insightful political commentators of our time. Change almost always sparks a reaction because authority and tradition are challenged. Fareed Zakaria connects our modern problems to the arc of change over centuries in a book that took him 10 years to write. It's called 'Age of Revolutions: Progress and Backlash from 1600 to the Present'.