Las Vegas Metro Police have asked a group to cancel or move a weekend appearance by former Maricopa County, Arizona, Sheriff Joe Arpaio, out of fear of violent protests. Arpaio was set to receive the Conservative Leadership Conference’s “Courage Under Fire” Award at the group’s dinner Saturday night at the Tropicana. Metro Police, however, were worried about violence after a protest was being organized on a Facebook page. The group, Citizens Outreach, who organized the dinner, said it is being moved, but won’t say where. They also won’t say if Arpaio is still attending.