Leave the motorcycles alone and take care of the true killers on the streets of this city: TAXI DRIVERS and BUS DRIVERS!

放过摩托车吧，去处理这个城市真正的马路杀手：出租车司机和公车司机！

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Only 10% of meteors more than 150 yards wide -- dubbed "potential city killers" by Holdren -- have been detected, meaning more than 10, 000 are out there without our knowledge, he said.

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White House science adviser John Holdren told a congressional committee in March that as few as 10% of asteroids more than 150 yards wide -- which he called "potential city killers" -- have been detected.

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Athens was quiet on Saturday, but about 1, 000 protesters shouted slogans such as "American killers go home" in front of the US consulate in the port city of Thessaloniki.

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