Deflecting blame is a skill prized by politicians the world over. Many could, however, still learn a thing or two from Goodluck Jonathan, the president of Nigeria, who has found no end of scapegoats for Boko Haram, a vicious insurgent group in the north-east of Africa's most populous country. Mr Jonathan's most common evasion is that Boko Haram is a regional problem that cannot be solved by Nigeria alone. His excuses seem, unfortunately, to be metamorphosing into fact. Boko Haram is now spreading its poison into neighbouring states. The kidnapping of about 80 Cameroonians from villages near the border with Nigeria has shone a light on its growing clout throughout the countries around Lake Chad.
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