BRUSSELS (AFP) - The spectre of a new food scare loomed over Europe on Thursday as Italy faced a possible EU ban on imports of mozzarella cheese because of high levels of dioxins in the milk used to make it. The European Commission warned Italy it could follow Japan and South Korea's lead in imposing an import ban on mozzarella cheese made from buffalo milk from the southern region of Campania. After a 6:00 p.m. (1700 GMT) deadline for Rome to provide more complete information expired, the European Union's executive arm called for urgent action and warned of unspecified steps...