I got stuck with my mum in Amsterdam during the first bomb scares a few years back, and EasyJet were useless to be honest.
Luckily we paid for a nearby hotel for 3 days or so, but if we would have left it to them we could have easily just ended up sleeping in the airport for 3 days straight.
On an unrelated note:
When we could finally board back to the UK my DS (only the big, bulky ones were out) had to go all the way off to a professional scanning doodah which took us like half an hour. So damn nintendo too