Canadians are smart. Canada has officially declined the US's "invitation" to participate in the enormous waste of money erroneously called missile defense.
There's some confusion, however: "The news came just hours after ambassador-designate to the U.S., Frank McKenna, said Canada had effectively signed on to the U.S.-proposed missile shield when it amended the North American Aerospace Defence Command (NORAD) agreement last summer."
But a Canadian official said, "It is a firm 'no.' I am not sure it is an indefinite 'no.'" If you can figure out all those negatives, you're a better reader of politspeak than I.