What Happens When Scientists Study "Black Twitter"?

A study at USC sponsored by IBM will study "Black Twitter," trying to figure out what it means for people to form "neighborhoods" online. But has this study become a form of racial profiling, rather than just a sociological investigation? » 9/04/14 5:52pm 9/04/14 5:52pm

Disturbing chart shows rise in “justified killings” of blacks in U.S.

George Zimmerman has been found not guilty of murdering the unarmed teenager Trayvon Martin in Florida. Many Americans were not shocked. And there's a good reason why. Hard data shows that recent U.S. laws make it easy for blacks to be gunned down without anyone being found guilty of murder. » 7/14/13 9:00pm 7/14/13 9:00pm

When Did You Start Caring What Other People Thought?

Brain scans of teenage girls suggest something likely to hit home for many women — as they get older, they may have more emotional investment in how other people see them. » 7/15/09 2:30pm 7/15/09 2:30pm