Image taken on May 10, 2015 shows Irma Estela Garcia talking with her daughter Estela Cabrera through a border wall in the Friednship Park located on the border between Mexico and the United States, in Tijuana city, Mexico. On Jan. 25, 2017, U.S. President Donald Trump signed an executive order for a border wall to be built, but Center for Latin American Monetary Studies (CEMLA) estimated that migration from Mexico has been slowing down since 2008 after growing from 1990 to its peak in 2007. (Xinhua/Guillermo Arias)