That sinking feeling as you see that last bag come off the carousel, and it isn't yours. We are in ORD to wheel our suitcases through customs-control and transfer to our domestic flight. Two bags checked together at GIG, but only one made it here. The agent explains we must make a lost-bag report at our destination IAH. see this thread for more on bag-tracking confusion.

No line at passport-control at ORD this morning, and we make quick progress to Terminal 1 on the Skytrain. Join the security-line scrummage and then notice a separate priority line at the left hand end of the terminal; but it's not moving any faster then we are. Through in about 15 minutes and it's down to the iconic TUNNEL ^ , one of our favourite landmarks, and the wonderful neon-art is thankfully still functioning.

But we're missing that old computer-generated music. So for old times sake, we try to remember the tune and sing it ourselves - not that you could really call it a tune. We are in good voice and the bemused morning travellers hear our wordless, tuneless singing echoing up the tunnel, la-lee, parp-parp, beep, boop.