Canada's CSEC is as closely partnered with the NSA as GCHQ is. They even hacked Brazilian private oil companies, most likely for economic reasons similar to China:
Tendency to spy and tendency to exclude visitors for specious reasons are orthogonal. US immigration control is notorious, even amongst citizens just trying to reenter our own country from other "friendly" countries.
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Canada's CSEC is as closely partnered with the NSA as GCHQ is. They even hacked Brazilian private oil companies, most likely for economic reasons similar to China:
http://www.theguardian.com/world/2013/oct/08/brazil-accuses-...
I don't see why Canada is a better choice either. This is all political theater.
Tendency to spy and tendency to exclude visitors for specious reasons are orthogonal. US immigration control is notorious, even amongst citizens just trying to reenter our own country from other "friendly" countries.