The arrival of House Speaker Nancy Pelosi, who came to Baghdad on Saturday with a congressional delegation, set off a now-familiar cycle of reaction in the Iraqi capital. First there was buzz around the city about flight delays from Baghdad International Airport, which goes into lockdown when VIPs land or takeoff. Since no dust storms were grounding flights, anyone traveling could have assumed some American bigwig was heading in. But when local TV reported the visitor was House Speaker Nancy Pelosi, there was a collective shrug of the kind you might expect from Republicans catching a glimpse of her somewhere...