Yes and no. Here is the actual text - interesting reading. Glenn's testimony is interesting.
THE PRESSLER AMENDMENT AND PAKISTAN'S NUCLEAR WEAPONS PROGRAM (Senate - July 31, 1992)
Reagan and Bush Sr. willfully ignored it with the strange hope of using it as a non-proliferation tool. It did not work. AQ Khan's work also slowly began to come to the surface and was noticed.
The new president Clinton was simply overwhelmed by the evidence and caved in. I don't think he had a choice. North Korea fired up their program, even as Brazil was giving theirs up. Concerns existed with Iraq's yet to be dismantled nuke program. Thankfully the UN Inspectors took care of that later( regardless of what Dubya said later).
The F-16s that were to be delivered were going to be nuclear configured. That's REALLY what stopped the planes from being sent to Pakistan.
The current F-16s will not be nuclear capable as you know.
Events spanning 1980 -1992 ( read section Myth to Reality) proved Pakistan was going to go nuclear. This included Zia running his mouth in 1988 to the Carnegie Endowment delegation in interview that Pakistan has attained a nuclear capability `that is good enough to create an impression of deterrence.'
US selectiveness? yes, but look at the circumstances. At the same time US did not really care what India's opinion was even though they had been screaming itself hoarse.
Btw Blain, I am appreciative of Pakistan's contribution to the Afghan war today.