“That longest and friendliest border in the world is now an invisible Berlin Wall,” Mike Bradley told CBC News.

The idea of closing borders for health and security reasons is nothing new. Many countries have elected to close borders to protect their populations from viruses, security threats, and other external dangers. An example recently has been the brief closure of the Mexican border when the H1N1, or Swine Flu virus, was realized to have originated from a small Mexican town. The virus spread quicker than authorities anticipated and led the Mexican government to close their borders, especially to the United States. This tactic was not as well-received in the United States, however, because they were hesitant to the idea of border closure due to trade decimation.

The closure of the US border might not seem too unrealistic now that a national emergency has been declared and that it was found that there are millions of people infected with the swine flu virus all around the United States. Indeed, just 6 months ago, a prominent congressman of New York called on the government to close the border with Mexico:

Washington, DC (AHN) – A congressional Democrat serving on the House Homeland Security Committee is calling for the “immediate and complete” closing of the Mexican border with the United States until the swine flu is contained.
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