The President's News Conference
12/10/1947
https://www.presidency.ucsb.edu...
I hereby designate them as public international organizations entitled to enjoy the privileges, exemptions, and immunities conferred by the ...
The designation of the above organizations as public international organizations within the meaning of the said International Organization I...
Well, it's in effect and working right along.
They're- Congress is making an investigation of that situation now, and it's their move to act upon it.