Greece is stepping up cargo security at its key port of Piraeus ahead of next month’s Olympic Games. Piraeus this week joined a U.S.-led container screening initiative that means heightened security measures are now in place at 20 of the world’s largest seaports. To get the security program running before the summer Olympics begin on August 13, the United States is lending Greece two large-scale X-ray machines that can rapidly screen whole containers for terrorist weapons. Full Story