Jeremiah Cornelius writes: If shutting down access to blogs isn't enough to create resentment, the Air Force is "developing data mining technology meant to root out disaffected insiders based on their e-mail activity — or lack thereof." With "Probabilistic Latent Semantic Indexing" a graph is constructed of social network interactions from an organization's e-mail traffic "If a worker suddenly stops socializing online, abruptly shifts alliances within the organization, or starts developing an unhealthy interest in "sensitive topics," the system detects it and alerts investigators."
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