Libya’s on the brink. Two governments are fighting for control, even though the unrecognized rival officials in Tripoli act like everything’s under control. In reality, the two militaries are threatening each other, the population is split, and various militias and clans are choosing sides. In the midst of the turmoil, jihadist militants — who’ve made their way from Syria, Iraq and other parts of Africa — are taking up positions across the country. Cross-border violence has already erupted in Tunisia, shining a glaring light on the Middle East’s newest deadly hot spot.