It's not controversial. Obama's either legit or he is not. Get lawyers involved and take it to the courts. Those names you mentioned have a business. It's called Radio. Their credibility can make or break them. It's up to YOU and lawyers to bring this into the spotlight not up to Talk Radio.
This is a losing strategy, no judge has yet decided anyone has standing to bring a suit, even Alan Keys who was on the ballot. Whenever anyone tries to bring up the NBC argument the talking head always changes the subject to "Birther."
Orely Taiz has tried, and all she got for her trouble was a fine and profuse ridicule from freepers.
</the following is sarcasm> O'reilly has done extensive research and declared that Obama was born in Hawaii.