Many Americans will see the inside of a jail cell at some point in their lives. And if you think it only happens to criminals and troublemakers, think again. According to FBI estimates cited by the Wall Street Journal, authorities have made more than a quarter of a billion arrests in the past 20 years -- a period that was marked by a surge in federal funding for local police departments and law enforcement priorities, like New York City's "broken windows" strategy, that encouraged crackdowns even on minor offenses.