"In politics there are no permanent friends or enemies, only permanent interests."

...which justifies entities such as AIPAC, NIAC, etc.

Absolutely! Otherwise, they wouldn't be allowed to work or write worthless books. 

You must've heard what a great Chinesr general said about keeping your friends close and your enemies closer. 

By the way, the number of Russian scholars, researchers, students, businesspersons, artists, diplomats, etc. in the US alone during the Cold War era was estimated at 50,000. It is said, however, that was a very conservative estimate and there must've been more.