National Public Radio, under new leadership after the departure of a top executive who shared the public heat for the firing of Juan Williams for a moment of  candor a year ago, is now under the beginnings of a new siege for telling an opera program producer it would no longer carry her show after she spoke up as a demonstrator at a D.C. area Occupy gathering. One critic in particular calls the move hypocrisy, given NPR’s apparent tolerance in the past for political opinions voiced by several of its top news stars. A question still awaiting an answer: How clearly are those in any contractual relationship with NPR told that their speech, petition and assembly rights must be put on hold?