Here’s a refresher cheat sheet:

9/11 lead hijacker Mohammed Atta went to Hamburg University to study urban planning.

Convicted al-Qaeda scientist Aafia Siddiqui is a Pakistani who studied microbiology at MIT and did graduate work in neurology at Brandeis.

Osama bin Laden did a summer-school stint at Oxford.

Christmas Day underwear-bomb operative Abdul Farouk Abdulmutallab was an elite Nigerian engineering student who studied at one of Britain’s leading universities and “lived a gilded life.”

Jihadist Samantha Lewthwaite, the notorious “White Widow” British Muslim convert linked to last year’s Westgate-mall massacre in Nairobi, was the daughter of a soldier and a former University of London student.