The latest NEWSWEEK Poll tells a disturbing story. Obama’s approval rating is 47 percent, slightly better than in the spring and not terrible for a president facing disturbing economic news. The problem is that some of the lies about Obama are gathering strength. In 2008, 13 percent of Americans were under the misimpression that he was a Muslim. Now the figure is 24 percent. One explanation may be that Obama’s connection to his Chicago church was fresher in the public mind then. But the deeper problem is a growing number of people who think the president is not just disappointing or wrongheaded but dangerous.