I don’t know why she thinks travel to Pakistan was banned. I suspect she got that claim from Berg or WND.
I emailed her the document number and text of the U.S. State Department travel advisory from 1981 and asked her why she thought travel was banned. I pointed out that Pakistan was issuing 30-day visas to American tourists at the airports in Pakistan upon arrival to the country. I never got a response.
If we seek the truth, we must be truthful.