ABC NewsObama lobbies doctors on healthcare reformsReutersBy David Alexander CHICAGO (Reuters) - President Barack Obama warned doctors on Monday the US healthcare system was a ticking time bomb and urged them to support his overhaul, which includes a public insurance plan that many of them view with ...Video: Doctors Weigh in on Obama Health Plan The Associated PressAMA Gives Obama Warm But Wary Reception ABC NewsBuffalo News - Dallas Morning News - U.S.