"I guess it has something to do with the Rosenbergs, the establishment of a Zionist state, and the Zionist movement in this country. He saw a contingent of Jews, evidently, as proZionist and as such possible security risks (as has been borne out recently)."
Well...how has it been borne out recently?
Recently may be too broad here, but there was the recent (within a year) case of information stolen or borrowed from the Pentagon & given to Israeli intelligence . . .