d Cronkite Spring Commencement exercises will long be remembered by the graduates, their families, and the many friends who quietly listened as veteran newsman Walter Cronkite challenged them to take the world by its tail and make a difference. Sunshine and champagne flowed generously in Michigan Stadium last Saturday while the Class of 1984 held a collective celebration before leaving cloistered halls for an uncertain "real" world. Not since President Lyndon Johnson gave his "Great Society" speech 20 years ago has the stadium been brought out of mothballs for a graduation ceremony. Cronkite, who had cancelled several recent engagements due to illness, rose to the oc- casion by succumbing to the ecstatic electricity that filled the stands ... and that's the way it was.