DEAUVILLE, FRANCE-- When U.S. President Donald Trump made good on his threat to impose tariffs on countries around the world on August 1-including a 15% tax on goods coming into America from the European Union-markets across the world shuddered. In the bloodstock world, the first to be affected will be the Arqana August Sale, which starts this Saturday, August 16. An Arqana-sponsored plane full of Americans arrived Wednesday morning from Saratoga, and the TDN spoke with some of those who came over, and others who stayed home, and international buyers...