A new study published Thursday in the journal Science suggests many people unconsciously harbor racist attitudes, even though they see themselves as tolerant and egalitarian.

"This study, and a lot of research in social psychology, suggests that there are still really a lot of negative associations with blacks," said Kerry Kawakami, associate professor of psychology at York University in Toronto, Ontario, and lead author of the study. "People are willing to tolerate racism and not stand up against it."

http://edition.cnn.com/2009/HEALTH/01/07/racism.study/index.html