The Democratic race for president grew ever more riveting after the Ohio and Texas primaries left the two candidates neck and neck. I'll explain what comes next.
		Word-lovers gathered for the 32nd Annual American Crossword Puzzle Tournament. Lucy has the scoop on the winning clue and youthful champ.
		Isaac will tell you about an art project called "I in the Sky" that is giving ordinary folks a chance to place their faces on a billboard in New York landmark Times Square.
		Scientists flooded the Grand Canyon to save some of the plant and animal species there. Adelbert will explain.
		The nation of Colombia created a regional conflict after it chased FARC rebels into neighboring Ecuador. Michelle has the story on this important story from South America.
Dolphin Saves Two Whales A bottlenose dolphin in New Zealand saved two pygmy sperm whales from being beached. The dolphin, called Moko, guided the two lost whales away from the shore and out to the open sea. Tibetan Monks March in Protest The Chinese government cracked down on the second day of protests in the Tibet. Over 600 monks marched to celebrate the anniversary of the Tibetan revolt against the Chinese rulers. Obama wins in Mississippi Senator Barack Obama won the Mississippi primary, beating his opponent Senator Hillary Clinton by a large margin. The Pennsylvania primary on April 22nd is the next big contest for the two.