. >> this past weekend, we -- jamesthe former -- jameso washington, bookper to discuss his . this is one hour. trump is due to arrive in about an hour and a half. james clapper, is this summit a great i

. >> this past weekend, we -- jamesthe former -- jameso washington, bookper to discuss his . this is one hour. trump is due to arrive in about an hour and a half. james clapper, is this summit a great idea -- a good idea? guest: i think it is. i have been a supporter since kim jong-un conveyed his invitation via the south koreans. host: what kind of prep does the intel community do for such a summit? guest: typically what would happen is they would be a series presidential daily brief andcles about north korea undoubtedly, what we used to call expert briefs. i would anticipate the same sort of thing and perhaps reading i don't thinkough president trump is big on reading or studying. they would be a multimode approach to prepare the principles and his staff. host: in your new book, facts and fears, you write that there is an unwritten almost sacred writ of the intelligence committee that we should avoid engaging in policy formation. however, korea was one issue on which you let president obama know privately that he thought his policy rationale of not discussing anything else