Stephan:   You may remember that a few months ago I posted one of my Explore essays on a series of conversations I had while at a scientific conference in Sweden that had a big effect on me, and left me feeling embarrassed for my country. It was very uncomfortable. Here is the Argentine version. The American corporate media is so national-centric that it rarely reports on how we look to the rest of the world. And since 64 per cent of Americans have never been outside U.S. borders most of us don't even think about this. But for those of us that do, and do travel internationally, things have changed. Here's what I mean.