Not sure why we should change the rules. They broke the law so keep them in jail. Crime rate is down. There is no bad here.

U.S. Prison Population Soars in 2003, '04
SIOBHAN McDONOUGH, Associated Press Original Article

Growing at a rate of about 900 inmates each week between mid-2003 and mid-2004, the nation's prisons and jails held 2.1 million people, or one in every 138 U.S. residents, the government reported Sunday.