This story outlines some really cool hi tech ways that the .gov can keep you from protesting using less than lethal devices.
The final paragraph caught my eye:
"Perhaps these less-lethal tactics for crowd control do result in fewer injuries. But they also severely weaken our capacity to enact political change. Authorities have ever more creative ways to manage dissent, at a time when the need for change by popular demand is vital to the future of our society and the planet."