(CNN) - Radiation from cell phones can possibly cause cancer, according to the World Health Organization. The agency now lists mobile phone use in the same "carcinogenic hazard" category as lead, engine exhaust and chloroform.
Before its announcement Tuesday, WHO had assured consumers that no adverse health effects had been established.
A team of 31 scientists from 14 countries, including the United States, made the decision after reviewing peer-reviewed studies on cell phone safety. The team found enough evidence to categorize personal exposure as "possibly carcinogenic to humans."
What that means is they found some evidence of increase in glioma and acoustic neuroma brain cancer for mobile phone users, but have not been able to draw conclusions for other types of cancers
"The biggest problem we have is that we know most environmental factors take several decades of exposure before we really see the consequences," said Dr. Keith Black, chairman of neurology at Cedars-Sinai Medical Center in Los Angeles.
The type of radiation coming out of a cell phone is called non-ionizing. It is not like an X-ray, but more like a very low-powered microwave oven.
"What microwave radiation does in most simplistic terms is similar to what happens to food in microwaves, essentially cooking the brain," Black said. "So in addition to leading to a development of cancer and tumors, there could be a whole host of other effects like cognitive memory function, since the memory temporal lobes are where we hold our cell phones."
Wireless industry responded to Tuesday's announcement saying it "does not mean cell phones cause cancer." CTIA-The Wireless Association added that WHO researchers "did not conduct any new research, but rather reviewed published studies."FULL STORY
(CNN) - Think your cell phone is safe?
Related video: Cell phone cancer questions
After nearly a year-long investigation, Dr. Sanjay Gupta reports that everything we knew about cell phone usage and radiation exposure is not as it appears. His findings are stunning and have already changed the way many people, including Anderson, are using and carrying their mobile devices and hands-free headsets.
Related video: Cell phones and your brain
Tonight on AC360°, Anderson and Sanjay discuss the fine print of cell phone safety standards and what they’ve discovered about how you should and should not be using your phone will surprise you.
Updated: Tuesday, 5/31/11, 12:34 a.m.
Editor's note: CNN Chief National Correspondent John King speaks with a panel of guests about Sarah Palin's political future.
Editor's note: CNN's John King and Arwa Damon speak with Prof. Fouad Ajami about the anti-government protests in Syria.
Editor's note: CNN's John King reports on allegations that the Assad regime allegedly tortured a 13-year-old boy.
Tonight, a gruesome story out of Syria where the Assad regime continues its crackdown on its own people as they protest against the government for more freedom. We're Keeping Syria Honest.
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Editor's note: Watch our political panel weigh in on Palin here.
(CNN) - Former Alaska Gov. Sarah Palin is once again at the center of the political stage tonight.
Palin is in the midst of a rather mysterious East Coast bus tour that some political observers are interpreting as a trial balloon for a 2012 presidential campaign. The 2008 Republican vice presidential nominee is keeping details of her trip largely under wraps, with crowds forming simply based on speculation of where and when she might appear.
Related on the CNN Political Ticker: Crowds wait and wait and wait for Palin
Palin says she’s not on a campaign trip. Is that believable?
Tune in to AC360° tonight at 10pm ET for some Raw Politics about Palin and the 2012 GOP field.
Editor's note: Watch Damon and Ajami discuss Syria here.
(CNN) - Two more people died amid protests in Syria today, as government troops and tanks surrounded one town and apparently shelled another for a second day, according to protest organizers and a witness.
That takes the total number of dead to about 830. One of those deaths is giving a new face to the atrocities happening in Syria: 13 year old Hamza Ali Al-Khateeb. After his mutilated body was returned to his family, Syrians gathered in what may be their biggest and most significant protest yet. Hamza’s apparent torture has caused widespread outrage.
The Arabic language Facebook page set up in memory of him, “We are all Hamza Alkhateeb," has nearly 59,000 members as of this writing.
So will this new symbol of the brutality of the Assad regime rally Syrians to a critical mass?
Tune into AC360° tonight beginning at 10pm ET for a discussion with CNN’s Arwa Damon and the Prof. Fouad Ajami of Johns Hopkins University. Damon has what may be surprising reporting on why the Syrian government may want people to see Hamza’s body, and Ajami explains why he believes “we live in a cruel world” in which the West won’t be coming to the aid of the Syrian people.
(CNN) - Politicians are in plentiful supply this Memorial Day as the ramp-up to the 2012 presidential election begins in earnest.
Former Alaska Gov. Sarah Palin, who began a nationwide bus tour Sunday, generated plenty of buzz, visiting Fort McHenry in Baltimore and Mount Vernon in Virginia on Monday.
She told CNN on Monday that she plans to take her "One Nation" bus tour to Iowa, the state that votes first in the race for the Republican presidential nomination.
"I'm sure at some point I will be going to Iowa," Palin said.
The 2008 Republican vice presidential nominee told reporters earlier on Monday she is "still kind of contemplating" a White House run.
"I think any Republican candidate is very, very electable," she said. "I think Americans are ready for true change."
Palin's Memorial Day schedule will also take her to the battlefield at Gettysburg, Pennsylvania.
Over the next few days, Palin's "One Nation" bus tour is also scheduled to make stops at historic sites in Massachusetts and New Hampshire, the latter home to the nation's first primary.
"This isn't a campaign bus," she said. "This is a bus to be able to express to America how much we appreciate our foundation, and to invite more people to be interested in all that is good about America."
"We don't need to fundamentally transform America," she added. "We need to restore what's good about America."
Rep. Michele Bachmann of Minnesota, who would compete with Palin for Tea Party support should she run, was attending Memorial Day events in New Hampshire.FULL STORY