Rep. Mark Green, who represents Tennessee's 7th congressional district, has been pushing for stronger measures to combat drone-related threats.
It's a term that's casually thrown around in movies and novels. But what does "DEFCON" mean, and what's the significance of each of its five levels?
Transnational repression threatens security and human rights. The more we know about who is committing it and how, the better we can fight to end it.
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