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NASA and Google have come together to buy a new kind of computer that the manufacturer says runs on the strange laws of quantum mechanics. But some physicists counter that the machine, known as the D-Wave Two, has never demonstrated a phenomenon known as "quantum entanglement."

Search and rescue teams continue digging through the rubble of demolished buildings in Moore, Okla., after Monday's devastating tornado that ripped through the Oklahoma City suburbs. Officials there say there are still some people unaccounted for — exactly how many isn't clear.

Both the House and Senate are considering farm bills that would cut spending on food stamps, one of the most expensive government programs. But people disagree on how much the changes would affect recipients.

The future of parking has been showcased in Fort Lauderdale, Fla, this week at the International Parking Institute's annual conference. The conversation has been about helping drivers get in and out of spaces as conveniently as possible.

For some neighbors in Moore, Okla., the decision of taking cover away from home or sheltering in place made the difference between life and death.

In 2011, police detained Ai Weiwei for 81 days. Now, he's released a song that's turned the experience into a heavy metal protest song, along with a dystopian nightmare video. The lyrics are explicit and angry. Ai says his music is for the many political prisoners who remain jailed.

Out of gas, a drummer in Baltimore, Md., pulled off onto the side of the interstate to wait for help. While waiting, he pulled out his drum kit and practiced. The highway department came with some gas.

Amid warnings the proposal would shatter support for the measure, Democrats backed away from a provision that would allow gay U.S. citizens to sponsor foreign-born spouses for green cards. Advocates for gay and lesbian immigration rights accused Democrats of caving in to threats.

A new documentary about writer George Plimpton uses its subject's own voice to tell the story of his career as a path-breaking "participatory journalist" and longtime editor of the Paris Review. The film also uses the voices of Plimpton's friends and colleagues to defend him against the charge of dilettantism that dogged him throughout his career. NPR's Joel Rose reports.

Despite much international criticism, Israel has continued building its West Bank barrier. It's now nearing completion, while the Israelis and Palestinians continue to argue over whether it will help or hurt prospects for a Middle East peace agreement.