Which Schools Require Prescreens?

Son is also throwing his hat in for CMU–the only way you’re sure to never find a four-leaf clover is to not look for it. He’s allowed one shot in the dark, and CMU is it. My worry is that even if by some miracle he got in or was waitlisted, we wouldn’t be able to afford it. But the odds are that I won’t have to worry about that!