Against a backdrop of growing calls for ethnically based separatism, including in former President Olusegun Obasanjo’s native Yorubaland, the former president in a speech laid out the arguments for maintaining Nigeria’s unity—though not at any cost. Speaking June 9 in the Yoruba heartland city of Abeokuta, where he lives in retirement, Obasanjo argued that Nigerians will fare better staying together: “it is better for Nigeria to remain as one indivisible nation than for each tribe to go its separate way.”

This week: Crypo researchers don't trust the NSA, Facebook ads under scrutiny, a new cybersecurity agency for Europe, and domain names caught in the crossfire of the Catalonian referendum.

In the midst of secession movements in Catalonia and Iraqi Kurdistan, the New York Times recently highlighted two African movements, in Nigeria and Cameroon. In both countries, secession movements re…

As 2014 comes to a close, here are the top ten most notable world events of the past year.