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Use "wringing" in a sentence
"The hand-wringing is over the possibility that scientific questions could be foreclosed by how people react when someone takes a particular position on a scientific issue."
"It is more likely then that an officer will get seriously injured or killed and the tables will turn, alot of hand-wringing from the same ACPO ranks that clipped our wings in the first place, and a reinstatement of the equipment and possibly more besides."
"You may not agree with that being a priority, but that's what all of the "hand wringing" is about."