MarketWatch.com | Top Stories Follow The national debt just hit $40 trillion. Here’s how it can hurt Americans. A research group looked at the consequences for a student financing college, a family buying a home and a Social Security recipient. https://www.marketwatch.com/story/the-national-debt-is-about-to-hit-40-trillion-heres-how-it-can-hurt-americans-b4f252b9?mod=mw_rss_topstories marketwatch.com