7 Flat Tires
Every year, about 1,000 cyclists bike across the United States, over 4,000 miles, on a route called the TransAmericaTrail. This summer, two of those bikers included a 16-year-old -- and his mom. When you’re 16 -- what’s it like to spend 12 weeks straight with your mom? And, when you’re a parent, what’s it like to spend 12 weeks with your 16-year-old son? Jennifer McCord reports.