LOS ANGELES, Calif. - Just hours after Hillary Clinton adopted a respectful, almost friendly tone with Barack Obama in a Democratic debate, her campaign orchestrated a conference call in which a health-care specialist referred to a Nazi march in denouncing an Obama flyer. Clinton aides convened pro-Clinton health care analysts on Friday to respond to a new Obama flyer that says: "Hillary's health care plan forces everyone to buy insurance, even if you can't afford it." The flyer features a photo of a worried-looking married couple sitting at a kitchen table. Len Nichols of the New American Foundation, which is...