The raids left 11 people dead in Borno State and nine more in neighboring Adamawa, local officials have confirmed At least 20 people have been killed in coordinated attacks by suspected Boko Haram militants in two remote communities in northeastern Nigeria, local officials have reported. The violence marks the latest in a series of brutal assaults in the ongoing security crisis that has plagued Africa’s most populous nation. Earlier this month, the US warned its citizens to avoid Nigeria,