If I and other whistleblowers are sentenced to long years in prison without so much as a chance to explain our motivations to a jury, it will have a deeply chilling effect on future whistleblowers working as I did to expose government abuse and overreach. It will chill speech. It will corrode the quality of our democracy.

Lawyers from the NSA, as well as the UK's GCHQ, work very hard to search for loopholes in laws and constitutional protections that they can use to justify indiscriminate, dragnet surveillance operations that were at best unwittingly authorized by lawmakers.

We have a media that goes along with the government by parroting phrases intended to provoke a certain emotional response - for example, "national security." Everyone says "national security" to the point that we now must use the term "national security." But it is not national security that they're concerned with; it is state security. And that's a key distinction.

When it comes to cyber conflicts between, say, America and China or even a Middle Eastern nation, an African nation, a Latin American nation, a European nation, we have more to lose.

The Iraq war that I signed up for was launched on false premises. The American people were misled. Now, whether that was due to bad faith or simply mistakes in intelligence, I can't say for sure. But I can say it shows the problem of putting too much faith in intelligence systems without debating them in public.

We're now more than a year since my NSA revelations, and despite numerous hours of testimony before Congress, despite tons of off-the-record quotes from anonymous officials who have an ax to grind, not a single US official, not a single representative of the United States government, has ever pointed to a single case of individualized harm caused by these revelations. This, despite the fact that former NSA director Keith Alexander said this would cause grave and irrevocable harm to the nation.

If you seek to help, join the open source community and fight to keep the spirit of the press alive and the internet free. I have been to the darkest corners of government, and what they fear is light.