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Rehman Tungekar / KBIA

This week on the show: a former engineer calls for an investigation of the Callaway nuclear plant. Plus, new research may provide insight into how a species of treefrog evolved.

File Photo / Ameren Missouri

A former engineer at the Callaway Nuclear Plant is requesting that the US Nuclear Regulatory Commission, or NRC, look into possible violations of the operating license at the Callaway plant, owned and operated by Ameren Missouri.

By Janet Saidi