After Congress's 1995 ruling, a Palestinian historian, Walid Khalidi, did a little spadework.

ECONOMIST: Jerusalem

Then, there is the case of Rashid Khalidi , a former colleague of Obama's at the University of Chicago and now a professor at Columbia.

CENTERFORSECURITYPOLICY: Characters count

The state-run Saudi Press Agency cited an official source at the Saudi Foreign Ministry as saying al-Khalidi was seized by an armed group in front of his home.

CNN: Saudi diplomat kidnapped in Yemen