When Cuba lost their fossil fuel pipeline when the Soviet Union collapsed in 1990. Overnight they had no choice, they had to transition to clean energy, they didn't have any fuel to burn, and they also had to transition to a healthy food system, an organic system - their economy is crashing, this was not a planned transition. This was a crisis, but a crisis nonetheless, in which pollution went away. And it's very instructive to see what happened to their health.

I was in a community where we were out demonstrating. We were holding vigils against the Vietnam War, in - like, starting in around '67, I think, before it really exploded as a big movement.

As a society, almost one 1 of 2 adults has a chronic disease of one form or another. And where we're spending $3 trillion a year not on a healthcare system, but on a sick-care system that tries to patch us up after we've been made ill by a variety of institutional things around us - including a sick food system, air pollution, etc. Where we could be doing so much better even before people get to the point of getting sick.

Remember, Bernie [Sanders] was the guy. He was the one guy that could win this, and head-to-head he could go against [Donald] Trump and win.

I will not sleep fine if Donald Trump wins and I will not sleep fine is Hillary Clinton wins. Whether you are looking at nuclear weapons, whether you are looking at expanding wars and their blowback, which will not stop as long as those wars continue to expand, or whether you're looking at the climate, in my view, we have no choice. This is an existential moment. We are deciding not only what kind of world we will have, but whether we will have a world or not. I think it's very important to get outside this box that tells us we are powerless, when in fact, we are powerful.

We have all the numbers we need to turn this system on its head.

There are very complicated issues here [about NATO], and I don't want to give them short shrift.