WASHINGTON DC, Apr 05 (IPS) – Adam Isacson is Director for Defense Oversight at the Washington Office on Latin America“The migrants try to organize themselves to stay safe,” a humanitarian worker told me as we stood near a town square in Reynosa, Mexico, steps away from the U.S. border. More than 2,000 people from many countries, blocked from asking for asylum in the United States, were packed into this square block, living under tents and tarps, amid port-a-potties and cooking fires. Children were everywhere.