The first family is inching closer to finding the first dog. It's the nation's most hotly anticipated pet search as President-elect Barack Obama seeks to fulfill a key campaign promise to his daughters, Malia and Sasha. Egged on by the girls, George Stephanopoulos, host of ABC's "This Week," asked Mr. Obama about the soon-to-be White House pup during an interview taped Saturday in the network's studio in the Newseum and broadcast Sunday. "I got to tell you, you know, they're out touring the museum right now. I heard they were taken straight to the first-dog exhibit, and while you were...