Here are two articles that have leaked out into the "real" world. The first is not a real debate or controversy, really..., but it is kinda fun in a strange sort of way. It is an argument for a better way to generally represent the constant that arises from comparing the diameter or radius of a circle to its circumference. Since pi radians represents only half a turn around a circle, why not have the universal constant simply be 2pi, representing a full turn around the circle. Call this number tau = 2pi. The article, in the Verge, is kind of a rant on pi's fame:

Stop Celebrating Pi Day and embrace Tau as the true circle constantI am not sure about this one, but the accompanying "Tau Manifesto" is a pretty good read.

The other is really more of a comedy routine, designed to educate and highlight some real math. The sort of sweetened medicine you were forced to take as a child. Broadcast via Mother Jones, the interview/debate

What is the greatest number of all time?is an argument between two mathematicians Tom Garrity and Colin Adams. Clever....

Enjoy Pi-Day!!!