Originally Posted by
seawolf
I don't think it is just one obstacle (eg info sharing). It's also different eligibility for admission, political optics etc.
Take info sharing for instance. AFAIK (eg can't find any evidence of it) customs/immigration interaction is not shared. So if a traveler had a run in with CBSA with undeclared goods, that is not shared with CBP. It wouldn't show up in shared criminal databases. This would be exclude NEXUS membership from CBSA perspective.
Different eligibility for admission - As an example, Canada takes DUI more seriously than US in regards to determining admissibility. My understanding this difference in admissibility is the reverse for sex workers. Selling is not illegal in Canada (purchasing is) but both selling and purchasing is illegal in US.
You asking CBP officer who is sworn only to applying US laws/regulation to apply Canadian ones as well. IMHO it's a non-starter politically.
Definitely eligibility for admissions differs, and so do many other things, as you said. Look no further than arming CBP officers at enrollment centers as the simplest example. Sigh. I think in general we're violently agreeing here.
