He moderated a debate on the topic at a recent meeting of the American College of Sports Medicine.
He moderated the political claims made by his coreligionists under the terms of the Edict of Nantes, which had acknowledged Protestant religious and political rights.
He moderated a discussion on the economy during a visit to a manufacturing company in Pella, but reserved his sharpest critique for the president during a question-and-answer session with reporters.
He moderated a panel entitled "The Economy and the Property Markets: A Look Forward from Wharton's Senior Economists".
He moderated rhetoric on immigration reform and even learned Spanish.
He moderated a panel with the writers behind the TV hits "The Big Bang Theory" and "Grey's Anatomy" and the 2011 big-screen thriller "Contagion".
He moderated a segment on the myth that women often lie about sexual harassment, and he even appeared to suggest that Moore's relations with teenagers may have been "consensual".
