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Some scientists defend tsunami warnings (AP)

Seawater moves upward (from left to right) in the mouth of the Kamo River that flows into the Pacific Ocean at Kamogawa in Chiba prefecture, near Tokyo, on Sunday Feb. 28, 2010. The tsunami from Chile's deadly earthquake hit Japan's main islands and the shores of Russia on Sunday, but the smaller-than-expected waves prompted the lifting of a Pacific-wide alert. Hawaii and other Pacific islands were also spared. (AP Photo/Kyodo News)AP - The warning was ominous, its predictions dire: Oceanographers issued a bulletin telling Hawaii and other Pacific islands that a killer wave was heading their way with terrifying force and that "urgent action should be taken to protect lives and property."