In Arizona, the Maricopa County Sheriff’s Office is facing fresh accusations of racial profiling. In a new lawsuit, a father and son say they were arrested without cause and brought to the site of an immigration raid against their will. The father, Julian Mora, is a documented resident, while his son, Julio, is a US citizen. It’s the latest case against Maricopa County Sheriff Joe Arpaio, who’s been accused of the discriminatory enforcement of federal immigration laws. Earlier this year, the Justice Department opened a civil rights probe into Arpaio’s immigration enforcement policies.