When Barack Obama says it's a "smear" to call him a Muslim, Muslim supporters have second thoughts. He's had kind words for the Palestinians, but his hard line for Israel has Arab Americans worried. Does Obama's message of unity have limits? Is he distancing himself from voters who could make a difference? Also, the Bush Administration changes tack and sends a senior diplomat to Iran. On Reporter's Notebook, is the Bush Administration contradicting itself on global warming?
Banner image: Detail from The New Yorker, July 21, 2008 issue