Today's report on the gap in America's current accounts deficit with the rest of the world is a whopper -- $58.3 billion this past quarter. That's the difference between what we purchased from other countries and what they bought from us. It also includes foreign investments in this country. It's certainly a formidable figure... But what exactly does a high trade deficit really mean? In this segment of the Public's Business, Marketplace commentator Robert Reich offers his answer.