Southern border too! Mexican Soldiers Find 140 Migrants In A Tractor-Trailer Soldiers looking for drugs in the southern border state of Chiapas instead found 140 migrants inside a tractor-trailer. http://www.wibw.com/home/headlines/Mexican_Soldiers_Find_140_Migrants_In_A_Tractor-Trailer_133920303.html Nov 15, 2011 CNN – In two major cities in Mexico authorities found 140 illegal aliens in a semi-truck headed north in Mexico City. In May 2011 they found another 500 illegal aliens in 2 semi-trucks head to the America. Chiapas, Mexico is on the border with Guatemala. Mexico National Migration Institute figures there were about 25,000 illegal aliens captured in 2010. They don’t have the funding that the U.S. has to pursue the matter so a lot more than got through headed towards America. I wouldn’t put it past Mexico to use the illegal aliens as force labor to increase their economy.