Just in a bag? And the front wheel stays on? never heard of that method, but I like it! (I'm very good at taking things apart, and absolutely horrible at putting them back together again.)
Thank you very much! That saves me a lot of grief!

And, to just keep on with these questions, who do I ask about the plastic bag? The people at the ticket counter, security.....?

And I guess I'd have to figure out what to do with my luggage. I'm thinking of taking a trailer instead of panniers....I suppose the trailer could go through as is, and the box which holds my things (tent, clothes and the like) could also go through just as it is. Any experience with trailers and containers?