Those who urge us to hide by resurrecting barriers to trade and investment, with the ostensible aim of insulating Americans from the forces of globalization, would abandon America's commitment to the spread of markets and democracy around the world at precisely the moment these ideas are ascendant. Moreover, the potential economic and political cost would be enormous, depriving Americans of cheaper and in some cases higher quality goods and services, as well as denying them the opportunity to work at better paying jobs that depend on exports.