Yes, and they have a multiplicity of languages, and the fact that they can make that work is quite a testament to joint cooperation.
I think it's probably worth looking at the concept that Michael Kergin, the former Canadian ambassador to Washington, advanced a couple of months ago in the National Post about the idea of a permanent joint border commission. It might in the first instance be limited to things like packaging requirements and freight and documentation requirements. It wouldn't be too expansive, but it might simplify some of the areas where at the moment Canada seems to me to be somewhat subject to arbitrary American or fairly sudden.... You know, we have the smart border accord, which was joint, but since then we've had WHTI, we've had the APHIS, which is the agricultural inspection fee. A number of these things hit us from out of left field.
I think Kergin's point is that if you have some kind of jointly staffed entity, yes, there would be some secession of sovereignty, and the Americans might be uncomfortable about that, but ultimately I think that may be the way to go.