FRONTLINE explores "America's fixation on incarceration" with this two-film report, Locked Up In America. Through the episodes "Solitary Nation" and "Prison State," viewers are offered a dramatic and intimate look at this pressing issue. First-time visitors can look at some short clips, including "Who's Locked Up in America" and "How Much Time U.S. Prisoners Spend in Solitary." Moving on, the site...