quartet, i merged the crime novel and the historical novel in the underworld u.s.a. trilogy, the crime novel, the historical novel and the political novel, this book is a historical romance, it's that big. >> right. how much work do you do as an author on a book like this set in a period to be sure that have you the details of the period right? >> evan, i make it up. [ laughter ] >> now, i -- i knew that, but i wanted to ask the question in a serious way to treat you with the respect that you deserve. >> yes. >> there's some facts you cannot get around. >> yes, yeah. >> the might of japan descended 1941. >> undeniable. >> it sparked the grave injustice of the japanese internment here in america. we know that. beyond that, what i do in my books is create the secret human infrastructure of large public events. as far as research goes, what i'm looking for is narrative wiggle room, for example, -- >> right. >> when i read my researcher's briefs on december 1941. >> yeah. >> i saw that the first month of the roundups of the allegedly subversive japanese were haphazardly implemen