In the summer of 1993 Nelson Mandela visited NYC Mayor David Dinkins at Gracie Mansion. Several big city mayors were in town for a meeting including me as Mayor of Milwaukee.
Mandela was the most impressive public figure I've encountered. He had the clear eye of one who had been unjustly imprisoned for pursuing a just cause. He greeted the 20 mayors and 30 or so other dignitaries. He seemed unhurried and when he'd finished working the line he quietly slipped into the kitchen and greeted the food service staff.
The Rand Corporation recently issued a report sketching out two possible scenarios for America's transportation future. In one scenario, entitled "No Free Lunch", energy prices keep rising, leading to less driving and more compact development. Under this scenario, government regulates greenhouse gases heavily and taxes driving heavily to support transportation. In the second scenario, entitled "Fueled and Freewheeling", energy prices are stable, and neither regulation nor taxes increase.