yohave theio grand you ve the cyons, the chuahuan dert, and you ready ha physicalarrier caed mountns. in some eas wher rder patl respon time is measud in hou to days a ll is no a physic barrierright? in somplaces, ere ther urban turban coact, a nce makesense, beuse bord patrol n measurthe respse time in secds to mites. but doinit in the sert andn big be, that just cry. building wl fr sea to ining se is theost exnsive and leaseffectivway to do boer secury. [speakg spanh] another autiful rning inhe rio gnde. [filipe]e're goi to mexi! [heatherdoin' itguys! [mican mus] mmigrati officer spking in anish] i'm ofcially imexico. ay! ustin] l's go getacos. [speakg spanis [speing spanh] [speing spanh] [speing spanh] [saking spish] - exican sg playin - oh - [ausn] oh! - [j] oh my sh! - oh, n! - [file] oh, tse enchidas? [heatherum, so eited. oh my sh! mmm. - [b] i havewo spoon - ustin] omy god! [ben] i an two fks. [heatherperfect. i uld totay t one ofhese tac 's like bein kissed by angel. [b] oh my d, i'm fl. [bkground atter] ja you gothe time? 11 t [saking spish] [laughg] -[speaking anish] is is