Even before Mitt Romney delivered his speech before the NAACP National Convention on Wednesday, it seemed unlikely that his primary motive was to convince large numbers of black voters to turn against President Obama. After the speech, many pundits concluded that Romney actually wanted to get booed, and he even admitted in an interview that he "expected" to get a negative response.

Researchers are raising red flags about a recent study on race and deadly encounters with police in the United States, highlighting the difficulties in measuring racial bias. The study claimed that white police were no more likely than their nonwhite colleagues to shoot minorities. But now, other researchers say the study was flawed and that it adds little to the debate.