PARIS - The French Riviera cities of Nice and Cannes, best known for glitz and film festivals that attract Hollywood stars, were among areas that imposed curfews for minors Wednesday even as rioting abated. The government toughened its stance against those involved in France's worst civil unrest since its 1968 student riots. Interior Minister Nicolas Sarkozy said local officials have been told to deport the 120 foreigners convicted so far for their roles in the violence. Although rioting persisted in some places for a 13th night, car burnings fell by nearly half and reports of violence dropped. Nonetheless, looters and...