I arrived ORD yesterday at about 2:30 PM and immigration was CRAZY. Never seen lines like that before. In fact, I really thought for a moment that there had been some type of major security incident which caused immigration to get extremely tight.
Thank God for Global Entry, as I squeezed by hordes of people to get to the GE kiosks, then right out the Global Entry Customs Exit, correctly identified above at the end of baggage claim belt #5.