Surströmming is one of the world's foulest-smelling dishes. Thank you, Sweden. When the can of fermented Baltic herring is opened, all smell breaks loose. It's probably more myth than anything else that the cans explode a lot, though they do expand as the fermenting takes place. In any case, the airlines, again sensibly, will have nothing to do with it. We've never seen it in New York, not that we've looked that hard. For some reason, there isn't much demand in these parts for canned fermented herring. When we mentioned to someone at the Swedish Consulate that we wanted to track down some surströmming, he said, "Oh, I don't think that's a very good idea."