Since I'm old enough to remember going to college when World Islam was a bulwark against the highly touted existential threat to us and our way of life posed by Communist revolutionaries, open guerilla types and hidden spies as well as homegrown campus-bomb-planting revolutionary leftists, I also remember the commonplace observation of the time about the higher likelihood of engineering students choosing the Red revolutionary path; something about the appeal of simple, direct action to force the world and society into a more rational shape being appealing to that type of mind. I don't know about studies; it was a long time ago and I have forgotten the fine details of every humanities -and engineering- course I took at the time. There were a number of historical examples too, but I've let them slip away too.
Anyway, we don't have revolutionary youth to worry about anymore -- now it's terrorists all the way down.
Welcome to the new threat. Same as the old threat.