and so the net effect was to channel my gratian away from el paso and san diego into the sonoran desert and through arizona. prior to 1993-1994, the arizona senator was a complete backwater. to have that insignificant immigration into arizona since the 1920s. a number of crossings that occurred along the arizona portion of the border was fairly small. so as you can see the effect of the militarization was to, in fact, shift the points of border crossings. it increased the likelihood of crossing with the coyote. you see the raw trend predicted from the border enforcement effort, the dashed line. people always use a lot of border crossing guides to come into the united states, but what the administration did, it turned into the very common thing into a one of% thing for everybody not crosses with border crossing guides were as back in 1970 was only about three quarters cross with crossing guides. it also dramatically increased the cost of border crossing, change it from about an average of about $500 in real terms through the late 1980s and then accelerating up into 2010 when we cut off t