While there are differences in geographic location and orientation, most American think tanks are similar when it comes to the "revolving door" phenomenon. Moreover, even if think tank researchers do not enter the government, so long as their research has relevance to American national interests, they can still have considerable influence.
美國智庫有地域、屬性之不同，出入政府的「旋轉門」現象卻無大區別，且不管是否進入政府，只要研究的成果符合美國國家利益，都有可能發揮相當的影響力。