>> thank you all. hi, how are you? nice to see you. how are you? thank you. how are you? thank you. thank you. how are you? ..

>> all this and much more. 48 hours of nonfiction books and authors on c-span2. booktv, television for serious readers. >> and now from the international spy museum here in washington, d.c., retired cia operator kenneth daigler looks at u.s. intelligence efforts during the can revolutionary war and the role in defeating the british. from george washington's interests and the use of counterintelligence practices to an espionage network operated in new york city. this is just under an hour. >> good afternoon, and welcome to the international spy museum. my name is vince houghton, i'm the museum's historian and curator, and i would like to welcome you to another briefing. today's subject will be the american revolution and intelligence, and we'll joined by an exceptional author who i'll introduce, but before that say a couple words about the reti