some can, yes...in fact some have been
(a bit too many for comfort)
do you think i am denying that a good number of attacks (acts of war) against Pakistan have been carried out by individuals born in Pakistan?
No you are not, individual terrorists is not uncommon in the U.S. as well. As you know the Muslim-American communities are doing their best to make sure that the terrorists are arrested. Many of them arrested are Arabs or African. American citizens have traveled to Pakistan to be trained in the acts of terror in training camps before coming back home to commit acts of terror.