In this photo taken March 16, 2013, a police officer wearing a 

In this photo taken March 16, 2013, a police officer wearing a mask is on duty at a police station in Tokyo. Japan is becoming a sea of surgical masks. It’s about pollen, about germs and even a little about China, its polluting rival across the sea. (AP Photo/Itsuo Inouye)
Associated Press
In this photo taken March 16, 2013, a police officer wearing a mask is on duty at a police station in Tokyo. Japan is becoming a sea of surgical masks. It’s about pollen, about germs and even a little about China, its polluting rival across the sea. (AP Photo/Itsuo Inouye)
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