Steelers Institue Zero-Tolerance Policy?

I can understand why Tomlin might want to deny such remarks.  How is "zero-tolerance" defined--a parking ticket, a DUI, public urination?  Are they going to cut Troy if he pulls a Jeff Reed?  Again it's a slippery slope and the previous "case-by-case" was the right way to go.  I don't think he wants to be on record with the public having said as much.  In the locker room it's probably a different story.