Rochester, MN (Minnesota News Network)  --  The former U-S Speaker of the House will serve his prison time at the federal facility in Rochester.  

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Seventy-four-year-old Dennis Hastert has been called a "serial child molester" by a federal judge.  He's serving 15 months for covering up sex crimes from years ago.

Hastert is said to be in fragile health and Rochester is the closest medical facility to Illinois, where his family lives.  He is scheduled to report Wednesday.