That doesn't necessarily mean that the story isn't true, ... But what it does mean, then, is that at this moment we simply do not have enough evidence, in my view, for any conclusion to be reached - that the presidents have been lying to us for all these years and that what we've been told was just a pack of lies.

I would say that the Pentagon Papers case of 1971 - in which the government tried to block the 'The New York Times' and 'The Washington Post' and other newspapers from publishing papers that they obtained from a secret study of how we got involved in the war in Vietnam - that is probably the most important case.

I think that the very fact that CBS fought and fought and fought in Texas, in New York.

If the word gets out, if the perception exists that by speaking to a CBS journalist you are, therefore, inevitably, immediately speaking to the police, I don't think there's any doubt but that people won't talk. And, therefore, the public won't learn.

The government understands - every government, every administration, both parties, understands - that that power, they just don't have.

The government would be able to go to court with respect to newspaper articles, broadcast pieces and the like that they thought were bad or harmful or even against the government and try to block them.

I just had the sense that at least the books that I had read about law just didn't really have enough of that.