Legislation introduced last week by Senate Agriculture Com­mittee Chairman Pat Roberts, R-Kan., would repeal country-of-origin labeling (COOL) requirements for beef, pork and poultry and stave off trade retaliation from Canada and Mexico.

The U.S. country-of-origin labeling law requires meat to be labeled with the country where the animal was born, raised and harvested. The World Trade Organization (WTO) in...