A positive spin on this idiotic story, nicely done. Activism need not be violent nor do people need to be yelled at or talked down to.
I still firmly believe that any TSA employee who doesn't want to be a part of this should refuse to, just as any traveller should refuse to go through the machine. But, there need not be drama. In fact, I'd say that refusal without drama and in public has a more powerful effect than any verbal argument might.