A recent study said that 40% of American teens claim to have been in a car when the driver used a cell phone in a way that put people in danger.

最近的一项研究表明，40%的美国青少年称他们遇到过驾驶时玩手机的司机，这让人处于危险之中。

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Cell phones are a danger on the road in more ways than one.

手机在路上有多种多样的危险。

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Conclusion LP-PLA2 is the danger factor of CHD, it contribute to CHD through damaging the endothelial cell function mechanism.

结论：LP - PLA2是CHD发病的危险因素，它可能通过损伤内皮细胞的功能增加患病风险。

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There is so much confusion surrounding the question of possible danger from cell phones, that the FCC announcement raises questions about what sort of review will be conducted, how much credibility it will have, and whether it will come to grips with the varied and difficult scientific evidence bearing on the potential health effects of cell phone radiation.

FORBES: Should The FCC Re-Examine Cell Phone Radiation?

The CTIA, the wireless industry trade group, noted that no research has found cell phones to be a danger to health.

CNN: Cell phone exposure increases brain cell activity

From the conventional to the unconventional, from nations seeking weapons of mass destruction to the cell of terrorists planning the next attack, from the old danger of piracy to the new threat of cyber, we must be vigilant.

WHITEHOUSE: President Obama Speaks at the Air Force Academy Commencement Ceremony | The White House