One point: It's only Orwellian IF it affects our lives.
The NSA's aim is to have zero detection, universal metadata mining, and eventual action items for law enforcement to follow up on, as the FBI has the most broad authority to act within the US, on such information, as opposed to NSA, DIA, CIA, etc.. This takes the argument past the "If you have nothing to hide, you have nothing to fear" level. If you aren't acting in a pattern with a certain correlation to patterns of known and suspected terrorist/foreign-militants, then you have nothing to fear. Frankly, it might be a step in the right direction to further narrow focus away from random individuals who just have casual relationships with any dangerous-foreignly-motivated-entity: lived next door to, went to high-school with, played on a team with, worked with, had children at the same childcare facility as, etc.
SO... as they use data mining to shrink the "drag-net", we may all have more freedom.(?)
That is one position.