Across the world, unprecedented numbers of asylum seekers and migrants are turning to boat smugglers and risking or losing their lives in the world's oceans. So far this year at least 1,800 people have drowned in the Mediterranean. Instead of mustering life-saving political will, countries are responding with policies to keep them out and deter others from heading their way.
Children are by definition vulnerable. That's particularly true for girls and boys journeying alone, under unsafe circumstances, often fleeing violence. Mexico and the US have an obligation to apply the international principle of the "best interests of the child" as the gold standard for all dealings with underage migrants.