But you'll be less than successful describing the "radicalized" Muslims of Isis/Daesh currently driving military operations in Syria or Iraq as a "Worldwide Movement". Linking them to Saudi Fundamentalism is a pretty obscure proposal.

http://www.truth-out.org/opinion/item/29910-the-rise-of-islamic-state-offers-policy-lessons-for-us-hawks

Generating a radicalized segment of Islamic fundamentalists seems to have been part of the agenda driving our invasion of Iraq.

The argument can be made, of course, that "Radicalized Fundamentalism" stems from Saudi Wahhabism or factions of that movement, but you'd be hard pressed to trace that back across 30 years of those developing religious trends.

Most likely, tho, the threat posed by current Isis/Daesh radicals is largely a result (blow-back) of our occupation of Iraq, as described by the above link.

Speaking of the results of our invasion/occupation of Iraq

Those same hawks are calling for current actions against Iran today, right wing TeaHadists are intentionally conflating Isis with Al Qaida with Iran with Iraq (with the entire Muslim religion of course). For purposes of rationalizing actions against any Middle Eastern nation with a Muslim constituency.

Essentially the Reicht Wing Fundamentalist version of what they'd call "Jihad" if proposed by Muslim religious fanatics.