jacob zenn will be here for that conversation.ater on, self driving cars are coming to a highway near you. we will give you a status update with eddie alterman. we will be right back. ♪ >> this weekend on american history tv on c-span3, tonight at 8:00 p.m. eastern on lectures and history, university of california san diego professor louise alvarez on the 1943 los angeles riots and how the suits were used to challenge racial identities. suitors wereerican viewed as public enemy, if not number one, the number two right behind japanese-americans. they were seen as un-american. >> sunday at 6:00 p.m. on american artifacts, saving slave houses project explores the green hill plantation. >> greenhill plantation, this site, has the original slave owner here. he was active in the slave trade. one of the things he decided to slave his yard is a auctioneer stand. >> you can definitely feel the power of this place. that auction block standing where it is is why this site is so powerful. really thehave been last place men, women, and childre