Excerpt:
"On November 5, 2009, [Major Nidal] Hasan entered the Fort Hood deployment center. He carried two pistols. He jumped on a desk and shouted 'Allahu Akbar!' – Arabic for 'God is great!' Then he opened fire, killing twelve U.S. soldiers and one DoD employee, and injuring forty-two others."
That narrative is from the recently released William Webster report on the Fort Hood massacre. The Federal Bureau of Investigation was tracking Hasan but failed to prevent his murderous rampage. The report gives some clues for that failure, such as the diagnosis of the problem:
"The Fort Hood shootings are a grim reminder that violent radicalization is a persistent threat to the United States and its citizens and residents. Radicalization – whether based on religious, political, social, or other causes – challenges the capability and capacity of the FBI and other members of the U.S. Intelligence Community to identify, collect, analyze, and act on accurate intelligence in time to detect and deter those who would commit violence."