Bryan Caplan's essay (http://www.cato.org/sites/cato.org/files/serials/files/cato-journal/2012/1/cj32n1-2.pdf http://www.cato.org/sites/cato.org/files/serials/f

Bryan Caplan's essay (http://www.cato.org/sites/cato.org/files/serials/files/cato-journal/2012/1/cj32n1-2.pdf http://www.cato.org/sites/cato.org/files/serials/files/cato-...) doesn't mention immigrant crime. Or, if you like, the extra crimes that will be committed by those whom Caplan is happy to penalize: the poor folks living next to you who pay higher taxes, are ineligible for benefits, don't have the right to vote, etc. What would be the Caplanian response here?