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Threat Tightens Security at Thief River Falls School

School Superintendent Bradley Bergstrom says the threat may not be credible, but he says they're not taking any chances.

THIEF RIVER FALLS, MINN. (KTRF) –  A threat of violence at Lincoln High School in Thief River Falls, Minnesota has district officials and police on alert. School Superintendent Bradley Bergstrom says the threat may not be credible, but he says they’re not taking any chances. He says the comments about someone armed coming to the high school Wednesday to do…