The U.S. Justice Department said in a court filing Tuesday that it will appeal a federal judge’s Jan. 31 ruling striking down President Barack Obama’s health-care reform legislation. Federal lawyers filed a notice of appeal with U.S. District Judge C. Roger Vinson in Pensacola, Fla. In January, Vinson became the second federal judge to find unconstitutional a provision of the Patient Protection and Affordable Care Act requiring almost every person in the United States to obtain insurance coverage starting in 2014.