Lynn Neary speaks with Sarah Weinman, the news editor for Publishers Marketplace, about the antitrust probe of Apple and six publishing houses over the prices of e-books. It is being investigated by the Department of Justice and the European Commission.

Virginia Tech put a multitiered emergency response plan into effect Thursday after a gunman apparently shot and killed two people on campus, a university spokesman said as investigators tried to piece together the incident.

In a draft report (pdf) released today, the Environmental Protection Agency confirmed what many residents of Pavilion, Wyoming have been complaining about for some time now: Fracking, or hydraulic fracturing, is responsible for polluting the area's drinking water.

The campus of Virginia Tech in Roanoke, Va. was on lockdown Thursday after a gunman killed a police officer during a traffic stop, and one other person. Campus officials instructed everyone to stay in a secure place indoors and barred visitors while police continued their search for the shooter. Virginia Tech established a number of security and emergency response measures after the 2007 mass shooting that killed 33 people. Mallory Noe-Payne, intern with NPR member station WVTF in Roanoke provides an update.

United Nations climate talks, like many negotiations, are a blend of dead seriousness and theater. Today at the talks in Durban, South Africa, an American college student provided a moment of theater by shouting out a short, unauthorized speech during the main session of the talks. Her interruption encapsulated frustration with the pace of the talks in general, and the United States' role in particular.

Reacting to widespread protests, Russian President Dmitry Medvedev said alleged vote fraud of parliamentary elections will be investigated.

The AP reports:

Medvedev told reporters Thursday — after meeting Czech counterpart Vaclav Klaus — that the law may have been violated during Sunday's vote, because "our electoral law is not ideal."

There's no question that the Great Recession has meant hard times all around, but from 2007 to 2009, it sent black America into an economic tailspin.

According to the Pew Research Center, the median net worth — that's assets minus debts — of black households decreased by more than 50 percent from 2005 to 2009.

Secretary of State Hillary Clinton has spent the last two days meeting with her NATO and Russian counterparts in Brussels. They've been talking about NATO plans to deploy a missile defense system in Eastern Europe, to counter "rogue" Iranian weapons. Russia — again — raised objections last month and even threatened to pull out of the latest U.S.-Russia nuclear weapons treaty.