Congressman Bill Shuster, chairman of the House Transportation and Infrastructure Committee, invited researchers from Carnegie Mellon University to bring their NSF-supported autonomous Cadillac SRV — one of the most advanced in the world — to Washington. There, the driverless car chauffeured a few dozen U. S. Congressmen (and a couple of reporters) from Capitol Hill to the Pentagon and back, on urban roads and congested highways – a non-trivial task even for a human.