It was unclear what the person was shouting -- reports indicated it was about Jonathan Pollard, an American who spied for Israel -- but it was Obama's reaction that got immediate buzz.
"This is part of the lively debate that we talked about," Obama said, bringing the audience of students to its collective feet.
"We actually arranged for that, because it made me feel at home. I wouldn't feel comfortable if I didn't have at least one heckler."
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