agent warren flagg. he's worked at the f.b.i. for 27 years. thank you very much, mr. flagg, for joining us. we know judge kavanaugh has undergone six background checks. how will this investigation be different? >> well, obviously, those background searches are specific as to his character, for the six times. everyone more extensive than the next as he moved up the ladder. and this one, though, has to do with additional evidence that was presented at the hearing. ie-- people were named, a diary was used, there were other people that have come forward, other people who made allegations. all those people will be interviewed as soon as possible. >> ninan: we know that dr. ford was administered a polygraph test. is that something the f.b.i. will also administer? >> the f.b.i. will not administer polygraphs because it's not evidence. it can't be used in a criminal case. we don't use them in a criminal case. it's an investigative tool. she's already passed that polygraph, but we would ask those people who the particular polygrapher is. is this an expert? i don't know where t