Trump’s tariffs: A tax on American customers

President-elect Donald Trump has promised to impose across-the-board tariffs on imported items from some allies and adversaries, claiming that overseas nations pays such taxes to the U.S. Treasury. But it is American customers who would truly be opening their wallets to pay for tariffs. Correspondent David Pogue talks with Dartmouth economics professor Doug Irwin concerning the unintended penalties from such commerce obstacles.