The Supreme Court’s decision to prohibit affirmative action has the racists who run our university in a pickle.They want to discriminate based on race, but they are legally limited by the decision in the ways that they can pretend not to be.Columbia University Law School came up with a clever plan: ask students to send in a video of them talking for no more than 90 seconds. Ostensibly the goal was to show how the student comes across. What are they like?Except, well, 90 seconds. Not exactly a lot of personal data can be gleaned from 90 seconds of a...