It's bizarre in its way. The one country Thailand has not targeted with a tourism campaign is the US. In the past seven or eight months, they've announced campaigns to bring the British, the Scandinavians, the Germans, South Americans, Malays, the Indians, the Chinese, and now the Russians (again). And as you say, the Russians are about to be penned up. They Chinese already have been penned up with no sign they'll be let loose any time soon. But that is who Thailand targets. One of the fastest ways to turn around that dollar/baht exchange rate would be to get American tourists buying baht with their dollars. But Thailand clearly doesn't want Americans to come here.