Someone who I never can remember exactly (it might come to me) said his brother went to Paki around that time; and it was difficult to get a visa as an American, you had to have some business/etc to do it. It wasn’t easy but it could be done.
I wonder how a 21 or whatever he was year old guy with no reason to go could get one. Of course, he was the “protegee” or whatever of the rich Muslim guy whose name I also can’t remember, Chadoo?? So even if he had a US passpart strings could have been easily pulled/money changed hands.
But it has also been said that the State Dept (FOI?) said there is no record of him having a US passport until he was a (state?) senator.
Well, I’m a mine of non-information so it’s bedtime.
It may have been my post describing my brother’s traveling to Pakistan at that time with an optometric group. His group were allowed into Pakistan, but had a delgate meet them at the airport in order to pass through customs as entering Americans. I’m not aware of there ever being an outright ban on travel to Pakistan.