Does this frail peasant country which beat back the most advanced military power in the world and sacrificed millions of its youth for independence, now risk conquest by Heinz and Coca-Cola? David Tomasi from Seattle, a war veteran who now runs a travel agency, doesn't think so. "The only reason they're doing business is because the Party's instructed them to amass wealth. If the party tells them to stop, they'll stop." 'Uncle' Ho's face with his characteristic fu man chu beard and quizzical eyes grins out from the dong (the currency note). At millions of dong to a dollar, Uncle Ho is almost valueless. But he's ubiquitous.