Well, maybe the headline should read "Pilot Duty Day Contract Limitation Imprisons Passengers". As the article points out there were many factors, I don't think Homeland Security had much to do with it. You voted for Kerry, right <g>?
If you divert an international flight anywhere in the world to an airport without customs and immigration you're in for a goat rope.
This is deja vu, NW had a similar situation a few years ago with several planes blocked by a blizzard in DTW. As usual, money will cure all ills:
http://www.freep.com/money/airtravel/nwa10_20010110.htm