Inspectors from the National Institutes of Health said in a letter to UW-Madison that the animals they saw during a December visit were in good condition, while also finding areas where the university could improve its oversight over animal research. The letter comes on the heels of a report from the U.S. Department of Agriculture, which found 20 animal welfare violations. The two agencies, the USDA and NIH, made a surprise visit to UW-Madison last month.