ROME - Police raided homes across Italy before dawn Friday and arrested seven alleged members of the radical Red Brigades suspected of the 1999 killing of a Labor Ministry consultant. Authorities said the arrests struck at the heart of the left-wing terror organization, which sprang back into action a few years ago after more than a decade of silence. The suspects, officials said, might also have had a role in the slaying of another government adviser last year. Police arrested three men in Rome and one in Florence, prosecutors said. A woman was picked up in Pisa and another near...