I don't know anything about the Canadian cargo plane -- I must have missed that story.
But, when I was just trying to search for that, I found this:
180 pounds of nuclear material missing in Canada
http://209.157.64.200/focus/f-news/1017261/posts John Loftus now on Batchelor Alexander WABC reports: A student of Nuclear Engineering at McMaster University Hamilton, Ontario. has disappeared along with 180 pounds of nuclear waste stolen from the university's nuclear reactor. This happened several months ago but an alert has been ordered tonight in the USA and Canada. His name is ? Adnan al-ShoukriJumai, 27 years old, a Saudi national. A search is underway. The fear is that they may hijack a cargo plane in Canada. I hope to provide further details later on this thread.
You are right, that is the thread. Ok, it only mentioned a plane as a possibility.
Ok, goodnight and stay safe.