Drinking contaminated water can lead to cholera, vomiting, diarrhea and other ailments that can quickly incapacitate and kill.

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The IPCC confirmed a Taser, which delivers a 50, 000-volt electrical charge into targets to incapacitate them, was fired during the incident.

BBC: Andrew Pimlott

"She knows if she thinks too hard about what she's doing, what she's becoming, then it is going to incapacitate her, " Pratchett said.

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Shortly before his last trip to Cuba for cancer surgery, Chavez tapped Maduro as his replacement "if something were to happen that would incapacitate me" and called for voters to support him.

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"Neuroscience and neuroimaging is going to change the whole philosophy about how we punish and how we decide who to incapacitate and how we decide how to deal with people, " he says, echoing comments of a growing number of leading scholars across the country, including Princeton and Harvard.

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