Reuters: President Barack Obama on Thursday will designate the largest marine sanctuary in the world in an area of the Pacific Ocean that will be off-limits to commercial fishing and deep-sea mining, the White House said on Wednesday. Obama will sign a proclamation that increases the size of the Pacific Remote Islands Marine National Monument by six-fold to 490,000 square miles (1.27 million sq km/370,000 sq nautical miles). The White House said in a statement the area is "of particular interest because...