Police raided homes across Italy before dawn Friday and arrested six 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 Sassari on the island of Sardinia. “With this operation the main root of the new Red Brigades has been cut,” Interior Minister Giuseppe Pisanu told reporters. Premier Silvio Berlusconi said the operation could have “deep repercussions” on the organization. Full Story