There is good reason to believe that we have already entered the Sixth Extinction, a period of destruction of species on a massive scale, comparable to the Fifth Extinction 65 million years ago, when three-quarters of the species on earth were destroyed, apparently by a huge asteroid.

Hamas must agree to first recognize Israel, second to end all violence, third to accept past agreements. Try to find a mention of the fact that the United States and Israel reject all three of those. They obviously don't recognize Palestine, they certainly don't withdraw the use of violence or the threat of it - in fact they insist on it - and they don't accept past agreements, including the road map.

If we move toward the weaponisation of space, we can bid farewell to the planet. The chances of survival are very slight.

As a research tool, the internet is invaluable.

The main selling appeal of NAFTA to US corporations is that it gives them an advantage in the North American market over their European and Japanese competitors.

In other countries, rich and poor, education remains substantially free, with educational standards that rank high in global comparisons. Even in the US, higher education was almost free during the economically successful years before the neoliberal reaction - and it was a much poorer country then. The GI bill provided free education to huge numbers of people - white men overwhelmingly - who would probably never have gone to college, a great benefit to them personally and to the whole society. Tuition at private colleges was far below today's exorbitant costs.

The whole infrastructure of air travel was, and is, part of government policy. It is not a natural development of a free economic system - at least not in the way that is claimed. The same is true of the roads, of course.