There are a few reasons. In the normal political operation of a democracy, a lot of what goes on is under the table. The party in power can not talk about it, and the media does not only want to publish the opposition party's criticism. When this kind of situation arises, there is a need for scholars to play a balancing role.
有幾點原因：政治運作在民主的常軌中，很多是檯面下的，執政當局不能談，媒體又不願讓反對黨單面批評的狀況下，就需學者來扮演平衡的角色。