More than four years after social media drove the revolutions known collectively as the Arab Spring, the Army is taking a closer look at open source information and how it fits into the service's broader intelligence operations. "This has become a very, very important indicator for us," Lt. Gen. Mary Legere, the Army's chief of intelligence, said of open source information during an Oct. 15 event at the Association of the United States Army conference in Washington. "We get how...