Controversial Arizona Sheriff Joe Arpaio Under Investigation for Allegedly Violating Civil Rights

Sheriff Joe Arpaio of Maricopa County, Arizona has gained national attention for his relentless pursuit of illegal immigrants, but now the hard-line lawman finds himself in the sights of the U.S. Justice Department. The self-proclaimed toughest sheriff in the country is under investigation for possibly breaking civil rights laws. Watch "World News with Diane Sawyer" for more on this story tonight on ABC. Among the federal allegations against Arpaio: "unlawful searches and seizures,...Full Story