News agencies are reporting a disturbing story out of Nigeria, where the military has sentenced 54 of its own soldiers to death, after they say the men refused to fight Islamic militant group Boko Haram. Officials found them guilty of mutiny, and they now could face a firing squad. The soldiers have denied the charge. Troops in the country have regularly complained of a shortage of weapons and supplies and feeling outmatched by Boko Haram, a brutal organization that has killed more than 2,000 people this year alone in their campaigns of mass murder, kidnapping, sexual assault and arson …