PARIS - Paris prosecutors opened an inquiry Tuesday into two young bloggers who urged French youths to riot and revolt against the police, a judicial official said. The youths, a 16-year-old French teen and an 18-year-old with Ghanian nationality, were detained Monday in the Paris region, said the official. They were to be placed under investigation, a step short of formal charges, for inciting harm to people and property over the Internet, said the official, who spoke on condition of anonymity because French law bars the disclosure of information from ongoing inquiries. Conviction on the charge could carry a sentence...