[jansen]

Fair enough. They are cold or better 'neutral'. I'd take cold and neutral any time over judgmental and degrading.

[pjlegato]

I've come into the US many times, and personally witnessed thousands of people being granted entry into the US with nothing but professionalism. Cases such as this are certainly rare.

There will always be a few people in any large group who treat others badly, and US border guards are no exception. I'm sure we could find rare similar cases in Germany or anywhere else, too.