mexico city foreign minister mexico honduras el salvador guatemala meet mexico next week discuss immigration policy responses donald trump u.s. presidency honduran ambassador mexico say wednesday central american minister want open line communication mexico foreign minister luis videgaray discuss problems migration flow central americans alden rivera say interview first point contact ... expect answer rivera say meet videgaray three central americans take place mexico city rivera say mexico foreign ministry say meet officially calendar yet rivera say main concern change u.s. immigration policy mexico react would impact central america trump vow deport millions undocumented u.s. immigrants build wall along mexican border country ready mass deportation would big risk could fall humanitarian crisis say november reuters report honduras el salvador guatemala agree join force seek support mexico forge group response trump government mexico central america discuss migration trump ambassador