Tyson disputes claim by USDA's Rollins, says shuttered beef plants can go to any buyer ↧ ↧ Tyson disputes claim by USDA's Rollins, says shuttered beef plants ... U.S. meatpacker Tyson Foods has disputed a claim by U.S. Department of Agriculture ‌Secretary Brooke Rollins that it would sell its recently shuttered beef plants only to American-owned companies or producers, including cooperatives.