(CBS News) Did you think I wasn't going to honor Pi Day today? Hello? Do I not have a trophy proclaiming me eighth in the state in a middle school Numbers Sense competition that I polish regularly?

This is at least my ninth year of writing about Pi Day—here is my post from 2010. Of course it's called Pi Day because the date, 3/14, is similar to the first three digits of pi (3.1415 …). At this ...