Arizona TV Station: Sheriff Arpaio under FBI investigation

Phoenix CBS television affiliate, KPHO reports that the "FBI is looking into accusations that Maricopa County Sheriff Joe Arpaio is using his position to settle political vendettas." The so-called "America's toughest sheriff" and anti-immigration icon has denied any wrong doing but the article states:

The list of people subjected to the Maricopa County Sheriff's Office ivestigations reads like a Who's Who of the Valley, and it includes people who have authority over the sheriff and people who challenged his authority:

Dan Saban, who ran against the sheriff in 2004 and 2008
Arizona Attorney General Terry Goddard
Maricopa County Manager David Smith
The Maricopa County Board of Supervisors
Superior Court Presiding Judge Barbara
Mundell
ACLU attorney Daniel Pochoda

None of the investigations resulted in convictions; however, they cost the targets hundreds of thousands of dollars in legal fees and tarnished reputations. Many of the targets were never charged with a crime.