For work, I was required to leave the safety and comfort of Japan for the unknowable dangers of the US. Media and corporate “risk managment” departments had warned of the grave dangers of traveling to Canada and the US, while many workers have been outright forbidden to visit Mexico because of the terrible risk of swine flu.
My goal was to wear my face mask for the entire 17 day trip. I started by wearing it in the Narita airport in Japan. No one was at all surprised to see a passenger with a face mask there. If anything, I feel it makes me look more Japanese. I kept it on until passing through immigration and customs in the US.