Northeastern Nigeria is in mourning. Militants attacked mosques and homes in three small villages in Borno state yesterday, reportedly killing more than 100 people (news is just emerging now). Boko Haram extremists slaughtered residents and set homes on fire, murdering nearly 100 in one village alone. The region is often targeted by Boko Haram, but this was the bloodiest day since President Muhammadu Buhari took power in May. The Nigerian army is carrying out a rescue mission, but many fear the death toll will rise … along with the violence.