Health Warning: A mysterious stomach bug is spreading, that has sickened 269 people in 8 states. 

Know the symptoms and "Share" to increase awareness: http://abcn.ws/13dNuMn

For the third year running, Peter Thiel, Facebook's first investor and the co-founder and former CEO of PayPal, is giving about 20 teenagers $100,000 each to drop out of college and launch a business.

Would you take the deal?

Will you buy a ticket?

JUST IN: The Powerball jackpot has increased to $600 million making it the largest Powerball jackpot in history. 

What would you do if you won the lottery?

Study: DNA fragments from the fecal germ E. coli found in 58% of public pools.

As police searched for him, and as he lay bleeding in his boat hideout, Boston Marathon bombing suspect Dzhokhar Tsarnaev wrote "F*** America" on the side panel of the boat, police in Massachusetts told ABC News.

David Muir interviewed "Star Trek" star Zachary Quinto today to get his thoughts on director J.J. Abrams, our Person of the Week.

Tonight, find out where the director with an infinite imagination says he gets his sense of wonder. 

“This technology potentially enables any two bit criminal to operate with the skills of a highly trained sniper,” said David Chipman, a spokesman for Mayors Against Illegal Guns.

Bill Gates' net worth hit a five-year high today of $72.7 billion, topping that of Mexican billionaire Carlos Slim.

"I reviewed the Treasury Department watchdog's report and the misconduct that it uncovered is inexcusable," Obama said in the East Room of the White House. "Americans have a right to be angry about it, and I'm angry about it."