Boko Haram's slaughter of 2,000 northeastern Nigerians shows the jihadists have escalated beyond targeting Christians and has placed Nigeria in the midst of a global war against humanity, Nigerian relations expert Adeniyi Ojutiku said Jan. 12. Hundreds of gunmen invaded Baga and 16 surrounding villages in Borno state beginning Jan. 3, and continued to slaughter residents and burn homes throughout…