These policy meetings have to be closed to the Public in order to ensure Decision Makers make the "right" (sic) policy decisions.  Opening the discussion to the UnSerious©¹ violates the Principle of Epistemic Closure, contaminating the Decision Making process.  

It is, after all, impossible to maintain the TINA status quo when alternatives are publicly known.

She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre