by Brian Sheerin in Riyadh, Heather Anderson & Alan Carasso Wherever and whenever horses from Japan show up on the world stage, recent history dictates that they are to be taken very seriously. As recently as 12 months ago at the Saudi Cup meeting, horses representing the island nation accounted for four of the evening's six big races, and a month later in yet another desert destination, they somehow managed to one-up themselves with a spectacular five-timer on Dubai World Cup night. The nation has yet--repeat, yet--to break through in...