This week on AgweekTV, highly pathogenic avian influenza continues to take a toll on flocks across the country. We'll see what's being done to try to stop it. Our Agweek Livestock Tour takes us to the home of some of the nation's best Angus genetics. At the International Sugar Beet Institute, we'll hear the latest in politics from Washington, D.C. And we'll see what's being done to lower nitrate levels in drinking water.