The surveillance revelations are critically important because they revealed that our rights are being redefined in secret, by secret courts that were never intended to have that role - without the consent of the public, without even the awareness of the majority of our political representatives.

Candidates run for election on campaign promises, but once they're elected they renege on those promises, which happened with President [Barack] Obama on Guantánamo, the surveillance programs and investigating the crimes of the Bush administration. These were very serious campaign promises that were not fulfilled.

People sometimes say I broke an oath of secrecy - one of the early charges leveled against me. But it's a fundamental misunderstanding, because there is no oath of secrecy for people who work in the intelligence community. You are asked to sign a civil agreement, called a Standard Form 312, which basically says if you disclose classified information, they can sue you; they can do this, that and the other. And you risk going to jail.

There's no question that the US is engaged in economic spying. If there's information at Siemens that they think would be beneficial to the national interests, not the national security of the United States, they'll go after that information and they'll take it.

The NSA has built an infrastructure that allows it to intercept almost everything.

If we simply follow the rules that a state imposes upon us when that state is acting contrary to the public interest, we're not actually improving anything. We're not changing anything.

As a general rule, US-based multinationals should not be trusted until they prove otherwise. This is sad, because they have the capability to provide the best and most trusted services in the world if they actually desire to do so.