the fantasy of the anglo-american conquest is you have wightman in the in settled down in the reproduce those on the land if you have these men who were wondering who did not have steady work they have to do their own type of racial threat of the american west so there is a project to live with that social and racial threat and that is how they become the target. >> host: kelly hernandez with the growth of l.a. in the 20th century were there other trends when the movie studios moved in?. >> you have a decline and it is important 2.0 here in moscow angeles white men constitute nearly 100 percent of the population it is surprising what we think about today but it is important to think historically about trends. so what happens by the 1920's is the incorporation of the white men in to a the military and they no longer constitute that same type of threat so this is a new moment but then it is the mexican and incarceration but for those employers across the south west in to work on the railroad but the with those to say we have spent the last 40 years in congress what effectively has a cap o