Invisible soldiers, eh? How fast can you say "police state made easy"? But we can't stop technology now. Better everyone than everyone else.

Nick,
The liklihood or not of a society becoming a police state has little to do with the technology available to the government. Stalin and Mao had plain old paper and pencil spies and police.
Its really a question of will. The government has to want a police state and be willing to use terror to get it. For their part, the people, who include the soldiers and cops needed to enforce oppression, have to at least passively accept totalitarian rule, though it takes pretty exceptional courage to stand with the opposition.
Thankfully, those who would welcome a dictatorship are a loony fringe in western democracies. They wouldn't get far.

I think people often blame the type of government over the actual person in charge, which is completely wrong to do. That's another story.

I think he meant more of a 1984 thought police kind of case, where you could be watched at any moment.

How do they cloak the Projector?

Jim, I would imagine that it's not just one huge projector following the equipment around, they would use projectors the similar size of the cameras, one at various spots of the vehicle/person.

I wonder if they would have to pay Q for inventing this? Wheres Bond when you need him?