US court upholds block on Iowa immigrant arrest law

By Daniel Wiessner (Reuters) - A U.S. appeals court refused on Friday to allow Iowa to implement a law allowing for the arrest and prosecution of people who are in the United States illegally. The St. Louis-based 8th U.S. Circuit Court of Appeals said the Republican-led state's law, which had been set to take effect in July before it was blocked by a judge, would interfere with the federal