Republican presidential candidate Ben CarsonBenjamin (Ben) Solomon CarsonTrump launches effort to boost support among black voters Zoning is not the answer to all our housing problems Freer housing is 'fairer housing' — HUD should tie funding to looser zoning MORE is adding fuel to the controversy surrounding rival Donald Trump's claims that "thousands and thousands of people" in New Jersey cheered as the World Trade Center fell on 9/11. 

A reporter from ABC asked Carson on Monday if American Muslims in New Jersey were cheering on 9/11 and whether he had heard about it. 

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"Yes," Carson responded. 

"There are going to be people who respond inappropriately to virtually everything," Carson added. "I think that was an inappropriate response. I don't know if, on the basis of that, you can say all Muslims are bad people. I really think that would be a stretch." 

Reporters then asked Carson to clarify if he had seen the cheering on 9/11. 

"I saw film of it," he said, adding that he had seen the footage in news coverage from the time of 9/11.