Arizona Gov. Jan Brewer filed an appeal yesterday with the U.S. Supreme Court to overturn a ruling that blocked key parts of the state's immigration enforcement law, which went into effect last July. Last year, shortly after SB 1070 passed the Arizona Legislature, a federal judge's order kept elements of the law from taking effect, including a requirement that state and local police enforcing other laws could question people about their immigration status if officers had reason to suspect that people were in the country illegally. Gov. Brewer requested that the 9th Circuit Court of Appeals court lift the injunction, but the ruling was upheld in April.