Case in point:
Q: Is it possible that Obama traveled with a U.S. Passport in 1981?
A: No... It is not possible. Pakistan was on the U.S. State Departments no travel list in 1981.
There was no such State Department listing. Pakistan was on a travel advisory list. It was dangerous for Americans, and especially for non-mohammedan Americans to travel there at that time.
The question still remains, why did anyone travel to Pakistan during a time of islamist fueled civil unrest?
For jihad, maybe?