Image taken on July 16, 2014 shows migrants on board of a train to the north of Mexico, in Arriaga, Chiapas state, 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/Str)
