For nearly two decades, Kurds have gathered peacefully in this mountainous corner of northern Iraq to commemorate one of the blackest days in their history. It was here that Saddam Hussein’s government launched a poison gas attack that killed more than 5,000 people on March 16, 1988. So it came as a shock when hundreds of stone-throwing protesters took to the streets here Thursday on the anniversary, beating back government guards to storm and destroy a museum dedicated to the memory of the Halabja attack. Full Story