Agriculture Secretary Tom Vilsack listens to researchers discuss alfalfa at the U.S. Department of Agriculture's (USDA) Dairy Forage Research Center at the University of Wisconsin, Madison, WI, on Tuesday, May 7, 2013. USDA photo by Kevin Tuttle.
<p><a rel="nofollow" class="external text" href="https://www.flickr.com/people/41284017@N08">U.S. Department of Agriculture</a>
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Kevin Tuttle/Public Affairs Specialist/Kevin Tuttle
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/usdagov/8720838312/">20130507-OSEC-KT-4926</a>