WHITE PLAINS, N.Y. (AP) -- Usually, it's an empty threat: "If you kids don't stop fighting, I'm going to stop this car right now and leave you here!" But a mother from an upper-crust New York suburb went through with it, ordering her battling 10- and 12-year-old daughters out of her car in White Plains' business district and driving off, police said Tuesday. Madlyn Primoff, 45, a partner in a Manhattan law firm, pleaded not guilty Monday to a charge of endangering a child. A temporary order of protection was issued, barring her from contact with the children, who were...