In a bad omen that speaks to the instability that chaotic Somalia is capable of wreaking in East Africa, Kenya’s borders are increasingly vulnerable to incursions from the radical Islamist militia group al-Shabab, which dominates a vast swath of southern Somalia. Kenya has vowed to step up border security, but it is not unreasonable to fear that such augmentations will not be enough. Kenya and the region certainly do not need any more impetus to instability, and the idea of porous African borders easily permeated by radical Islamists and others with malice aforethought is a nightmare scenario not only in the region, but in the West as well.