There is more to American than just a blur out of a car window, but you must linger to see it’s details. I’ve crisscrossed this country for nearly half a century listening to your stories. While most reporters focus on life’s flat tires, I look for something far more difficult to find — what keeps the other tires rolling.  I discover people who are practically invisible, the ones who make our lives better, but don’t take time to tweet and tell us about it.