Scientists reported new evidence Wednesday that supports a provocative theory about cancer.
Three separate teams of scientists said they had, for the first time, shown that so-called cancer stem cells can be found naturally in brain tumors and early forms of skin and colon cancer.
Evidence has been mounting in recent years for the existence of these cells, which would be especially insidious. They are believed to resist standard chemotherapy and radiation and fuel the growth of tumors and relapses.
The Internet is slowly becoming a less anonymous place. YouTube has a new policy encouraging commenters to use their real names, and many news sites have switched to a login system run by Facebook.
News sites that still allow anonymous comments are finding there are legal risks. The Spokesman-Review newspaper in Spokane, Wash., has spent the last few months trying to protect the identity of a reader who saw a photo of a Republican Party official in Idaho named Tina Jacobson, and then posted a disparaging comment.
When I say citius, you say altius; when I say altius, you say fortius. Or don't. That's fine, too, traditional even. But these Olympics have conspicuously defied traditional notions by having cheerleaders, in a few different styles, at a few different venues. In basketball, dance teams perform between matches. In beach volleyball, highly choreographed teams delight attendees.
Republican presidential candidate Mitt Romney says America's national security priority should be preventing Iran from acquiring a nuclear weapon, and he was talking tough about this in his recent stop in Jerusalem.
"History teaches with force and clarity that when the world's most despotic regimes secure the world's most destructive weapons, peace often gives way to oppression, to violence, or to devastating war," Romney said. "We must not delude ourselves into thinking that containment is an option."
U.S. investigators allege that Afghan Gen. Ahmad Zia Yaftali stole tens of millions of dollars' worth of medicine from the Mohammad Daud Khan military hospital in Kabul. He has been removed from that post, but has not been prosecuted. He's shown here at the hospital on Dec. 18, 2010.
Credit Yoshikazu Tsuno / AP
Afghan President Hamid Karzai is greeted by Japanese Prime Minister Yoshihiko Noda in Tokyo on July 9. The international community recently pledged $16 billion in additional aid, but wants Karzai to crack down on rampant corruption.
The City of New York is planning to add 2,000 more yellow taxi cabs onto its streets. They'll be wheelchair accessible and raise a bunch of money for the city. The new licenses could fetch up to $1 billion at auction. And the hope is that the extra taxis will make life better for the many New Yorkers without cars.
Oscar Pistorius of South Africa runs in the men's 200-meter event at the Paralympic World Cup in May. Some observers have suggested Pistorius receives an unfair advantage from his carbon-fiber "blade" legs.
Credit William McDermott, Ph.D. / The Orthopedic Specialty Hospital, Murray, Utah.
"The unaffected leg produces peak vertical forces that are on average 9 percent greater than those produced by the affected leg using a running-specific prosthesis," concluded scientists who studied a Paralympic sprinter. The sprinter ran on one prosthetic like that of Oscar Pistorius; his other leg was unaffected.
The technology that makes walking possible for amputees is also making running possible at the Olympics. On Saturday in London, South African Oscar Pistorius will run on artificial limbs in the 400-meter sprint. Pistorius is a double amputee who runs world-class times on his carbon-fiber legs.
At last month's Prefontaine Track and Field Classic in Eugene, Ore., Pistorius ran in the inside lane of the 400-meter race. He leaned forward on his knees and fingers, and slipped his feet into the starting blocks — well, they're not actually feet.
Rabbi Yaacov Israel Ifargan is known as the 'X-ray' rabbi for what his followers say is his ability to "see right through" a person. According to Forbes in Israel, he is worth about $23 million, which makes him the country's sixth-richest rabbi.
Credit Daniel Estrin for NPR
Ifargan, right, sits next to businessman Nochi Dankner, center, at an annual gala in Netivot, Israel, that honors the rabbi.
Over the past year, Israelis have taken to the streets to protest the country's high cost of living. They've also directed their anger at a small group of business moguls who have used their close ties to government officials to gain control of large chunks of the Israeli economy.
Now, the Israeli edition of Forbes magazine has shed light on a surprising category of Israelis who have quietly also climbed to the top rung of society: multimillionaire rabbis.