EU leaders made great strides yesterday in their efforts to deal with a multitude of challenges, although few of the outcomes appear to be a panacea. Refugees: Funding refugee processing centers in southern Europe and North Africa will create structure out of chaos, but it does not solve the root of the problem any more than Donald Trump’s great barrier wall. Positioning border processing of refugees in Europe or prosecuting them in the U.S. means that immigrant pressures will continue. Syndicated columnist Jonah Goldberg recently wrote that, “So long as there are very poor countries, very poor people will understandably want to move here.” EU leaders promised to “take the extent and the equality of our cooperation...