Chief information officers at U.S. government agencies say they've made progress on several key issues, including IT security and modernizing their IT infrastructure, but still face major challenges in security and other areas, according to a survey released Tuesday. Government CIOs told interviewers sent by the ITAA (Information Technology Association of America) they've made progress in establishing IT security as a priority, expanding security awareness among staff and, in several cases, appointing a chief security officer, according to the survey. But IT security and privacy <A HREF="http://www.cio.com/blog_view.html?CID=18869">remain federal CIO's top concerns,</A> said Paul Wohlleben, a partner at Grant Thornton LLP, which compiled the survey for ITAA.