long time. >> for charles taylor and michael brehm, a change in mindset and attitude is evident afterntensive rehab at pendleton. but tomorrow, staff will start all over again with the 300 teens who still remain behind bars. >>> america's prisons, dangerous, often deadly. there are 2 million people doing time. every day is a battle to survive and to maintain order. >> down on your feet! down! >> among the nation's toughest, california state prison corcoran. severely overcrowded and plagued by racial tension. we spent months inside where officers try to maintain order in an institution with a notoriously violent past. this is "lockup - corcoran: extended stay." violence seems inevitable in prison.