Leading "Team Rat" is Anthony Martin, a 58-year-old white-bearded zoologist, whom some have called "the Pied Piper" for his role in the rat cull.

WSJ: This British Assault on an Island Off Argentina Is for the Birds

But it would also be much different if city workers hadn't spotted a suspicious backpack left on the route of a Martin Luther King Jr. parade in Spokane, Washington, in January 2011, in which white supremacist Kevin Harpham had hidden a bomb packed with fishing weights coated in rat poison.

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