According to an unconfirmed report from a TV viewer:

Just saw Bob Schieffer, moderator of tomorrow nights debate, on Hannity and Colmes and he mentioned a "probable" question about illegal immigration.

Let's hope this comes to pass, and he's able to ask tougher questions than Bill O'Reilly.

If you'd like to suggest something, this email might work: ftn@cbsnews.com (stands for "Face The Nation")