Woman fatally bitten by snake during church

LONDON, Kentucky (AP) - A woman died after being bitten by a snake during a serpent-handling service at church, police said.
Linda Long, 48, of London, Ky, died Sunday at University of Kentucky Medical Center, said Brad Mitchell, a detective with the Laurel County Sheriff's Office said Tuesday. Long died about four hours after the bite was reported, the Lexington Herald-Leader reported.

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I don't get this. Why do some churches think they need to handle snakes, to prove they are a true believer?