The Department of Justice will now handle the investigation into Phoenix Sheriff Joe Arpaio over accusations of racial profiling after federal prosecutors in Arizona asked to be removed citing unspecified conflicts of interest.According to court filings made public on Friday and reported by the Associated Press, Arizona's federal prosecutors did not provide specific details on conflict of interests, but said there is an "existing conflicts of interest or the appearance of conflicts of interest pertaining to the matter." "It's their call," Mel McDonald, an attorney for Arpaio, told the AP.