Event Features Leading Dairy and Food Chain Experts Dec. 19-20 in Madison, Wis. DAIRY NEWS – Greg Ibach, Under Secretary for Marketing and Regulatory Programs (MRP) at the U.S. Department of Agriculture, has been added to the top-notch line-up of speakers at the 2018 PDPW Dairy Food & Policy Summit presented by the Professional Dairy Producers® (PDPW). Under Secretary Ibach will present at 9:00 a.m. on Thursday, Dec. 20, kicking off the second day of the Summit at the Sherato