[djmcmath]

I've done rotating shift work, and it's a bear. 7 days of days, 7 days of swings, 7 days of mids, then "t-week," a sort of week of "normal" days. 12 on, 12 off. I also did a routine with 6 hours on, 12 hours off, which really screws with you, especially when you don't actually get to be "off" during the 12 "off" hours. If you don't get screwed up doing rotating shift work, there's something wrong with you.

And that makes ATC an interesting problem: you've got to man the towers at night, too. So you can either find people who want to give up the normal sane life of human beings and be consigned to night shift work forever, or find people who are willing to give up the sanity of a normal schedule and do rotating shift work. Both options are bad.

Dan