The clean and attractive train you see on the left is the one that whisks you from the basement of Amsterdam airport to the heart of the Dutch capital for $3. Yes, you read that right, $3 give or take an exchange rate fluctuation or two.
The fact that you can't catch a train from Washington Dulles airport (IAD) to the heart of America's capital is a sad reflection on the lack of resolve to 'do something' about road congestion, automobile pollution, and oil addiction. Now, IMHO, the DC Metro is one of the best in the world. So there should be a Metro terminal in Dulles, or better yet, a direct high speed line right to the heart of the capital, with heavily-subsidized tickets that shout "We know how to reduce traffic and pollution and oil addiction."