Tomorrow is Black Friday, the biggest shopping day of the year and what we think of as the official start of the holiday shopping season. The National Retail Federation expects over 183 million people to shop between Black Friday and Cyber Monday. And by the end of the season, consumers are expected to spend a record $902 per person on gifts, food and decorations. Plus, are U.S. Treasurys still “risk-free” investments? A new paper makes the case that U.S. government debt is riskier than many people think.