Needless delays. Sure it was crowded, as all airports seem to be on Saturday nights when many are understaffed. But some technology such as kiosks that allow customers to print from passports into the system and produce a printed photo and summary actually increase time for customs and immigration. Final security check was insane with massive mazes and when we were a few feet from scanners we were directed to another line that added 20 more minutes before we hit scanners. We had 3 hours to make connection but anyone with less than 2 missed their connecting flight.