I wouldn't worry about it. I've had that feeling myself when a muslim wearing a turban on the bus had a rucksack or briefcase, and looked highly suspicious and uncomfortable. Makes you a bit paranoid these days. They're probably thinking the same - "oh crap I look like a terrorist sat here"
Anyway it could have been a terrorist, but more likely just a strange person. There's plenty of strange people who aren't terrorists. Unless there's a perfectly innocent reason for someone to transport around gas canisters in those numbers.
[edit on 7-10-2009 by john124]
