Militias go on a rampage...this should raise concern

A file photo taken on August 7, 2012 shows fighters of the Islamic group Ansar Dine standing guard at Kidal airport, northern Mali. PHOTO | ROMARIC OLLO HIEN | AFP 

Militias, said to be mostly Islamic militants, are on the rampage in West Africa and the Sahel.

In Nigeria Boko Haram, that three years ago looked like it was on the ropes, for months it has been a killing spree, and its attacks on roads, bridges, and transmission means it has all but cut off the northeastern state of Borno from the rest of Nigeria.