Headline: Why border walls don’t workPublication Date: Saturday, March 16, 2019Primary Source: Billings Gazette (MT)Non-Cato Author: Nadine SmithType: articleFormat: Newspaper (Print)Nature of Mention: quotedScholar: Bier, DavidResearch Area: Immigration and Labor MarketsSubjects: the cost and feasibility of a southern border wallAttached Files: Bier.BillingsGazette.BorderWalls.pdf