Geography professor Monica Stephens has spent a lot of time putting haters on the map. Over at Humboldt State University in California where she is a professor, Stephens and a team of undergraduate students spent a year sorting through racial slurs on Twitter by location. And then she mapped them. That meant searching for words like "Reggie" and "fag" and "honkey." Stephens had a team of undergraduate students who sifted through 150,000 negative tweets. Then Stephens' students went through about 90,000 tweets that used the N word to determine if they were actually negative, she told Tell Me More host Michel Martin. And it turns out, people who tweeted the N word were concentrated in certain areas. "It tends to be in smaller towns, particularly in the Midwest, the Rust Belt area, more so than the South. But it was also quite present in Georgia and Alabama as well," Stephens said.