Trump will have to take up juggling if he goes ahead and scraps the agreement with Iran and at the same time, seeks to avoid alienating Russia, and quite possibly France and Germany. These European countries are already nervous about what the Trump presidency means with respect to the future of the post-World War II international order that has essentially kept the peace on the continent since 1945. This order is far from perfect, of course, and under pressure from other sources, especially due to the rise of chauvinism and European Trumpism.

Cumulatively, American society is sliding toward a new form of 'authoritarian democracy'. Elections continue, free speech is generally protected, institutions operate in accordance with the Constitution, but the reality of state - society relations is dramatically altered by the counter-terrorist claims of emergency rule and the right of exception.

When I told my son that I had to give a talk about my work to non-mathematicians, he warned me that regular people don't think like mathematicians.

It should be appreciated that if the arrangement on Iran's nuclear program collapses after being so patiently negotiated, and successfully implemented since 2014 despite the intense opposition of Netanyahu's Israel and its American loyalists in Congress, it would be widely perceived around the world as a huge setback in the search for regional stability and the struggle to prevent any further spread of nuclear weapons.

The systemic incompatibility between free-market capitalism and the quality of democratic life and respect for human rights has to be modified to take account of such contextual variables as wartime, security threats, and the societal balance between entrepreneurial and working classes.

I can only hope that Trump comes to realize the grave dangers of adopting a policy of confrontation toward Iran. Among these dangers is the likelihood that hardliners would again gain the upper hand in the governing process in Tehran, and the moderates who have sought to end national and regional tensions would be marginalized, or worse.

Human rights and international criminal law both illustrate the contradictory potential of international law. On one level, the imposition of human rights norms is a restraint on interventionary diplomacy, especially if coupled with respect for the legal norm of self-determination. But on another level, the protection of human rights creates a pretext for intervention as given approval by the UN Security Council in the form of the R2P (responsibility to protect) norm, as used in the 2011 Libyan intervention. The same applies with international criminal accountability.