1) We could quote petitions, and promptly have them bashed by you as being put together by psycho nutjobs. They are compiled occasionally by anti-circ special interest groups such as NO HARMM in order to make a joint appeal to medical organizations and legislators. They've had moderate success, too. Did you think that medical researchers decided to delve into the negative side effects of a highly profitable medical procedure which had been around for centuries on a whim? What piqued their interest?
2) Don't forget, it's even more important right now to stall and do nothing at all in order to make the president lose face than to do anything important. If they ever do get around to passing any significant reform however, it wouldn't be that difficult to sneak it in. Batch legislation has been a gripe of many people for years, because of people slapping as much as they can to serve a political agenda into every bill, alongside the reforms that everyone wants. People are forced to take what they want with what they don't in order to get significant changes made.
3) In the US, PhD does usually equate to "I am right". There are better questions to ask though. Were the doctors urologists, sexual researchers, or another specialty? Was he contradicting them with his own opinion or with information from a credible source? I'm not sure if you're old enough to remember this in the news, but the "science" behind the practice of touch therapy, many of the practicioners being college graduates, was basically discredited for the medical community at large by a 9-year old girl, who performed a single scientific study.
It's also noteworthy that many doctors just google their patients symptoms or go to WebMD in order to assist with diagnosis. Anyone with an internet connection can do the same, and they'd probably find that it's not exceptionally friendly to the concept of circumcision.
4) Consider Kantian ethics in this case, as well as the above cases. The results would definitely be significant if everyone did the same.