According to the CBC they were squaking a hijack code and were subsequently intercepted and required to land by Canadian F-18s. Interesting to watch the crew and pax walk across the barren ramp to awaiting authorities. I didn't really understand how you could make that squak and 1. not know it and 2. not correct it when the sherriff showed up. How many queries from ATC would it take before you got it figured out?