I agree with you that this extent of surveillance is a characteristic element of totalitarian regimes. But the things that totalitarian regimes do with the data they collect is different from what happens in the US right now (as far as I can tell).
All totalitarian regimes used broad surveillance, but not all countries that have overly broad surveillance programs are totalitarian. What's missing is the desire for total control of many different aspects of life and political activity.
However, I think that there is a great danger that "total information awareness" leads to an ever greater desire for total control. That desire may even come from the people and have superficial democratic legitimacy. If everyone knows that the government knows everything, the people will demand control over many things that other people do.
All totalitarian regimes used broad surveillance, but not all countries that have overly broad surveillance programs are totalitarian. What's missing is the desire for total control of many different aspects of life and political activity.
However, I think that there is a great danger that "total information awareness" leads to an ever greater desire for total control. That desire may even come from the people and have superficial democratic legitimacy. If everyone knows that the government knows everything, the people will demand control over many things that other people do.