Remember back in the '70's when those supersonic European jets with the dropping nose first landed at Dulles. used to take 50 minutes to get to Dulles, but then you could park right out front of the terminal for about an hour for a nickel. Those big 747's always looked like they were just going to drop out of the sky, but never did. That was long before they tripled the size of the original Dulles building & there weren't nearly so many traffic lights from Leesburg to Tysons Corner. Seems from about 3 to now over 30 last time back in the area.