There has been a significant increase in the number of children used as human bombs by Boko Haram militants in north-east Nigeria, the United Nations says. Horrendous. Use of children as ‘human bombs’ rising in NE #Nigeria https://t.co/WGqUf3xmBn#ChildrenUnderAttack pic.twitter.com/U4DfNlz8iG — UNICEF (@UNICEF) August 22, 2017 Unicef reports there have been 83 cases so far this…