Re: If Benazir knew this would happen...
No. Both were forced out of country. BB came in Pakistan under a deal with Mush. Otherwise she would have either killed like her father or landed in a jail without trail. Even after deal she was main target for killing on 18th Oct where tons of innocent people died. NS was kicked out by the government though your "God Bless Free Judiciay" gave clear ruling that there was no bar on him to come home. But "God Bless Mush" gave a damn about "God Bless Free Judiciary".
That document (agreement) is violation of Constitution. NS was illegally dethroned by your "God Bless Mush". Later 9/11 incident, Your "God Bless Bush" made him imortal King of Pakistan. And God Bless Reign of Terror continued.......