Union karate

A top honcho in the sanitation union punched out a department chief in a labor-management dispute, breaking his nose and sending him to a hospital.

Thomas Bacigalupo, who has a black belt in karate, attacked Nick Saggese, head of the department's Brooklyn North division, at 1:10 p.m. outside the agency's District 2 field office facility on Hamilton Avenue in Red Hook.

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