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MELISSA BLOCK, BYLINE: This is ALL THINGS CONSIDERED from NPR News. I'm Melissa Block.
ROBERT SIEGEL, HOST:
And I'm Robert Siegel. President Obama is once again exercising his executive authority for an environmental cause. Today he announced plans to create the world's largest marine preserve. His proposal came in a video shown at the State Department's "Our Ocean" conference. The White House says it will seek input from fisherman, scientists, and other experts before setting boundaries for the preserve.