Sometimes, sometimes not. If you are a non-citizen living here, you'll generally enjoy most of the protections of the constitution and laws. If you are sitting

Sometimes, sometimes not. If you are a non-citizen living here, you'll generally enjoy most of the protections of the constitution and laws. If you are sitting there at customs just visiting, there are a lot of those protections that simply don't apply. Of course, some of those protections don't apply to citizens at these places either, though they play out a bit differently.