In total, 46 million Americans are puffing apart on cancers sticks still, based on the report. 'It's tragic,' said CDC director Dr. Thomas Frieden, who calls cigarette smoking the No. 1 preventable reason behind death in the usa. He estimates that smoking kills 1,000 Americans a day. The report has bad news for kids particularly. More than half of U.S. Children ages 3 to 11 are exposed to secondhand smoke, says the CDC. And nearly all kids who live with a smoker - 98 % - have measurable tobacco toxins in their body.'It went both methods - - that was the extraordinary thing. In virtually any category of risk, today it added independent information when compared to standard criteria we make use of,' Carroll said. 'More work needs to be done, but, in my opinion, this is a very good start.' Nevertheless, Dr. Kevin McVary, chairman of urology at Southern Illinois University College of Medication and a spokesman for the Urological Association, stated the test should be validated in more men before it could be widely used. 'It isn't there yet,' he said. UCSF just got a federal government grant to observe how men choose remedies and whether this test might sway them. 'We throw all these figures at them. Are they likely to make a better decision really?' Cooperberg said.