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Henceforth , the INS would aim to keep unauthorized aliens from trying to enter the US in urban areas such as El Paso and San Diego , and gradually add agents , fences and lights to that aliens would shift to less policed areas of the border , such as the Arizona border , and eventually , when the INS had hired enough agents and constructed enough fencing , aliens attempting illegal entry would be so discouraged they would not even try to enter the US . This time , the two organizations promise that they will look into what went wrong , specifically , the failure on the part of the Shin Bet to know that there were civilians - Shehadeh 's wife and baby - in the building , and the air force 's choice of a very large , one-ton bomb , to drop onto a relatively small building in the heart of mostly one-story , flimsy buildings made of cinderblock and tin roofs . If kids grow up in an area where they never meet people of a different color , it is a pretty safe bet that they probably wo n't meet more than a handful in their whole lives anyway . The Europeans quite rightly have criticized the shield for the same reason that they wanted an ABM treaty in the early 1970s : a shield over the US would leave them out , making them the likely target of a rogue state attack . Over the next several years , they developed a very productive professional relationship as well as a personal one ( Jim had separated from first wife , Jody , in 1983 ) .