The United States is a violent military state. It's been involved in military action all over the place.

The most important issues to address are the truly existential threats we face: climate change and nuclear war. On the former, the Republican leadership, in splendid isolation from the world, is almost unanimously dedicated to destroying the chances for decent survival; strong words, but no exaggeration. There is a great deal that can be done at the local and state level to counter their malign project.

Israel produces and stores chemical weapons. So therefore the US will prevent the Chemical Weapons Convention from being imposed on the Middle East. But it's necessary to evade this by misrepresenting the convention, and I think maybe 100 percent of the media, or close to it, go along. But that's a critical issue. Actually, Syria's chemical weapons were developed largely as a deterrent to Israeli nuclear weapons. Also, not mentioned.

[Donald] Trump has been very inconsistent on many things; on Twitter he's been all over the place, but some of it is very consistent. That is: Do nothing about climate change except make it worse. And he's not just speaking for himself, but for the whole Republican Party, the whole leadership. It's already had impact, it will have worse impact.

The US reasserted control over Nicaragua in 1990. Since then, the country has experienced a steep decline. It's now the second poorest country in the hemisphere.

It is one thing for the institution to offer space for serious engagement, in thought and action, and to encourage free and independent use of such opportunities; it is something else for the university to become engaged as an institution, beyond a fairly narrow range where true consensus exists, and even that raises questions.

Take pandemics. There could easily be a severe pandemic. A lot of that comes from something we don't pay much attention to: Eating meat. The meat production industry, the industrial production of meat, uses an immense amount of antibiotics.We're now running out of antibiotics that deal with the threat of rapidly mutating bacteria. A lot of that just comes from the meat production industry. Well, do we worry about it? Well, we ought to be.