From my experience with the INS, it seems is a typical place where pathetic miserable people with internalized racism go on power trips. I remember there was an Asian woman at the Boston INS office screaming at Asians. But she screamed even more harshly at black people. She shouted at this black guy with such incredible rudeness, but he just took it quietly. For green card's sake, I guess.
Things are pretty gross at the INS office in Atlanta too. The white photographer was smiling and flirting with the Bosnian immigrant but his attitude towards people of color was totally different.