and it's a very disturbing trend. >> yeah. you know, just last week, capital police caught a man with a machete and a bayonet near the dnc headquarters, director. i mean, his car was outfitted with neo-nazi symbols and a swastika. are these lone wolves a bigger threat than the larger organized groups, do you think? >> well, i think -- in fact i think director wray and his testimony mentioned this that their concern is the lone wolf, the lone actor. and this is something in common with i think domestic terrorism and that which is foreign inspired. is someone who becomes radicalized and doesn't evince any signatures, to use intelligence term, that alerts you to them. and that -- and director wray pointed out what a challenge that is for the fbi. >> yeah. director clapper, thank you,