Also in India, Shiite and Sunni Muslims coexist without regular violence for the most part, although, as I said, in these ritual moments where the Shiites curse the caliphs, that can cause occasional rioting.

NPR: Early Divisions at Root of Sunni-Shia Conflict

Today, the cause of free trade--notwithstanding occasional bouts of protectionism--is gaining ground worldwide.

FORBES: Magazine Article

An occasional reminder of reality helps against the delusions of power that cause most wars.

CENTERFORSECURITYPOLICY: Center For Security Policy

Medium-size M-class flares can cause brief radio blackouts in the polar regions and occasional minor radiation storms.

MSN: Big sunspot unleashes an intense solar flare

So he describes Grey's visits to Mormon settlements, his identification with the Navajo cause and his fishing expeditions which, to judge from some rather risible photographs, resulted in the occasional enormous catch, though producing little of literary value.

ECONOMIST: The writer of westerns