Unoccupied inmate beds are seen under a text at Maricopa County's Tent City jail in Phoenix, Arizona August 22, 2012. The controversial jail is run by Maricopa County Sheriff Joe Arpaio, who is seeking re-election for a sixth term during November's general election. Over 400,000 inmates have served time at Tent City. REUTERS/Joshua Lott (UNITED STATES - Tags: CRIME LAW SOCIETY POLITICS ELECTIONS)