Here s jonathan karl tonight. reporter: abc news has learned u.s. intelligence agencies were warning way back in november that an out-of-control disease was sweeping through china. the dire warning was detailed in a report by the military s national center for medical intelligence. as recently as two days ago, president trump said nobody saw the warning. this came out of nowhere. nobody would have ever thought a thing like this could have happened. reporter: the november intelligence report determined the virus was changing patterns of life in china and posing a threat to u.s. forces in asia. analysts concluded it could be a cataclysmic event, a source familiar with the report tells abc news, adding the defense intelligence agency, the pentagon s joint staff, and the white house were briefed multiple times. george stephanopoulos asked the defense secretary about the warnings. did the pentagon receive an intelligence assessment on covid in china last november, from the nationa