QATIF, Saudi Arabia — The conflict in Iraq has begun to spill over onto this hardscrabble, sunburned swath of coast, breathing new life into the ancient rivalry between the country's powerful Sunni Muslim majority and the long-oppressed Shiite minority in one of the most oil-rich areas of the world.
"Saudi Sunnis are defending Iraqi Sunnis, and Saudi Shiites are defending Iraqi Shiites," said Hassan Saffar, Saudi Arabia's most influential Shiite cleric. "There's a fear that it will cause a struggle here."
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Bit by bit, old rules have fallen away in recent years: Saudi Shiites won the right to publish and read sectarian literature. They can now work as journalists, build mosques and open Shiite schools to educate their sons.
But today, the power shift that seemed to be opening doors for the sect is beginning to look more like a dangerous destabilization. Some Shiite clerics here have received death threats in recent months, community leaders say. Shiites have also been accused of harboring links to Iran, a longtime nemesis of the Saudi government.
Sunni and Shiite clerics across the region have begun to warn against a fitna, a severe term that refers to a civil war or division within the Islamic faith.
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