As a person of logic and mathematics, it is abundantly clear to me that the telecom companies that participated in wiretapping at the behest of the Bush administration were committing a crime. The conclusion follows from logic and the law of implication and transposition.
Follow the logic after the fold.
It is clear that no person or corporation requires immunity if what they did was legal. Hence, we have:
If "act was legal" then "no immunity required".
Using the usual notation of P and Q, and applying the necessary condition logic:
Premise (1): If P, then Q
Premise (2): not Q
Conclusion: Therefore, not P
Substituting back in our conditions, not Q is not "no immunity required", i.e. immunity required, basically the same words used by the Bush administration and their Republican and Democratic enablers (Sen. Reid and Feinstein, for instance). Not P becomes not "act was legal", i.e. "act was illegal".
In the words of many a math professor, Q. E. D.!
I suppose it should be said that there may be some nuance in the condition of "act was illegal" in that immunity is warranted to forestall a legal battle that would ultimately come out on the side of "act was legal". I call bullshit on that from the outset simply because if there were wiretaps on citizens of and in the USA and there were no valid warrants for them, they are illegal ipso facto, by both the FISA and the Constitution. Taking it further also implies that the Bush administration, and very likely GWB and RBC themselves are guilty of subverting the Constitution and breaking the FISA law. This certainly also implies that they should be impeached, because those two items alone and by themselves constitute a High Crime or Misdemeanor as described in the Constitution.
The only way I would accept immunity for the telecom companies in question is if they actually testified that the Bush administration, via the NSA, FBI, and the DOJ, induced them to commit the illegal act of wiretapping w/o warrants. That is what immunity is used for: PROSECUTIONS OF BIGGER FISH. Every lawyer in the land and any person with a modicum of common sense know this. Heck, even someone w/o any common sense that does watch Law & Order knows it.