The US government is erecting a fence in the ocean to divide California from Tijuana, Mexico. Immigration and environmental activists say it is a costly, dangerous endeavour that will do little to keep out unauthorised migrants.
Refugees and Displaced Source: Internal Displacement Monitoring Center. *Most recent refugee data for 2013. Sources: Internal Displacement Monitoring Center, United Nations High Commissioner for Refugees, International Organization for Migration Additional work by Joe Burgess and David Furst.