America's prison population has increased 274% over the last 25 years. (PHOTO CREDIT: MIKE SIMONS/AFP/GETTY IMAGES) From CNN's Jack Cafferty: 7.3 million people in the U.S. were in jail, prison, probation or parole in 2007. That translates to one in every 31 adults in this country in the corrections system. This is very, very expensive. … Continue reading How can U.S. reduce prison population?