Some photos on Twitter ended Anthony Weiner's congressional career. The latest online image was not quite as damaging. Weiner has launched his campaign to be mayor of New York City. A gorgeous city skyline showed up on his homepage. But it wasn't of New York. It was Pittsburgh's skyline.

Fracking is a way of bringing up natural gas by pumping water and chemicals into the ground. Germany's powerful beer industry is worried that fracking would pollute groundwater.

There is some political willingness, but because China is highly decentralized politically, the Communist Party has only limited influence over provincial governments and how they regulate their dirty factories. The powerful state-owned oil companies have also resisted pressure to produce cleaner-burning fuel.

At the McDonald's annual shareholders meeting in Chicago Thursday, Hannah Robertson told CEO Don Thompson, "It would be nice if you stopped trying to trick kids into wanting to eat your food all the time." Hannah and her mother were part of a contingent from a watchdog group.

President Obama discussed America's counter-terrorism strategy — including the use of drones and the prison at Guantanamo Bay — during an address at the National Defense University on Thursday. He rejected the idea that the country can fight an open-ended "global war on terror."

The Boy Scouts of America has decided to allow openly gay Scouts to join the organization but not gay Scout leaders. Sixty-one percent of the National Council members who cast ballots supported the controversial proposal.

In Massachusetts, what's been a relatively lackluster campaign to fill the U.S. Senate seat vacated by Secretary of State John Kerry is heating up. Veteran Democratic Rep. Ed Markey is running against Republican Gabriel Gomez, a businessman and former Navy SEAL. Gomez is a political newcomer.

The National Weather Service's Storm Prediction Center in Norman, Okla., just a few miles from where the tornado hit Monday, had warned that bad weather was coming. But experts there say they're surprised the monster storm didn't cause more deaths, and they want to know why.

David Greene talks to filmmaker Alex Gibney about the new documentary We Steal Secrets: The Story of WikiLeaks. In 2006, Julian Assange launched WikiLeaks and encouraged anyone in the world to pass on information that might expose government secrets.

Amazon is piloting 14 possible shows for its streaming video service. The audience will vote on which shows it likes best. TV critic Eric Deggans says the process and the shows would like to be breaking ground for a new media — but they aren't.