Kathleen Hall Jamieson of the Annenberg School for Communication says expectations are high for President Bush's Iraq policy-change speech.<br><br><a href='http://www.chicagotribune.com/news/nationworld/chi-0701070360jan07,1,1921178.story?page=1&cset=true&ctrack=1&coll=chi-newsnationworld-hed' target='_blank'>http://www.chicagotribune.com/news/nationworld/chi-0701070360jan07,1,1921178.story?page=1&cset=true&ctrack=1&coll=chi-newsnationworld-hed</a><br><br>