For everyone who says that the military would side with the people, when the time comes, the government won't have to worry about whether or not the military will obey orders. Once effective mind control technologies have been developed, soldiers will be under the direct control of the government and will attack the people if ordered to do so. With mind control technologies, the government could just exercise mind control on the general population, making armed conflict unnecessary in the first place.
A mind control device would be implanted in everyone's brain at birth, or later on for those already alive at the time of implementation. Installation would be mandated by the government. This device would allow for all sorts of cool technologies such as thought sharing, and would be marketed as such. However, unbeknownst to the general population, the device would possess mind control capabilities, which the government would utilize as needed.
Face it guys, when the government develops mind control technologies, then we will all be screwed, and granddaddy's old shotgun won't do anything to save us.