Some of us are.
There are many of us that are quite aware that this is what is going on with the spp right here.
If you think it cannot happen, just look at the EU. They have ways around voters.
While true in the EU, there have been no treaties or agreements signed on the SPP, it's all pie-in-the-sky lip-service. Yes, it would be wise to watch what happens, but I don't think we need to get too worried at this point. I think ScaniaBoy in post #34 hit the nail squarely on the head with his comment (and eloquently, I might add):
Try to analyze the consequences (economical, legal, constitutional) of a North American Union rather than ascribing them to some evil intent.