Ideas:

It's going to be a podcast I wouldn't mind some sort of mic in the graphic.

I wouldn't mind some sort of box (literally, like a packing box) in the logo (if there is a way to make a box look cool). OR, at least have a square of some sort in the logo to represent a box.

Maybe this will help inspire a graphic:
The concept of the show is to have discussions on how to get out of the old way of thinking as it relates to policing. To think out of the box, get out of the box.  

I have a tongue and check photo of a box near my desk at work that has some cartoon eyes peaking nervously out of the box as if it's scary out of the box. 

Lastly, I hope to throw the logo on a shirt, so the cleaner/less busy, the better.

Specifically, I need the logo to be Square; 3000 x 3000 pixels.

Beyond the Blue Box