TOPSHOT - Central American migrants who have been travelling in a caravan hoping to get to the United States, climb the metal barrier separating Mexico and the US to cross from Playas de Tijuana in Mexico into the United States, on December 2, 2018. - Thousands of Central American migrants, mostly Hondurans, have trekked for over a month in the hopes of reaching the United States. (Photo by PEDRO PARDO / AFP)