I think the impacts of 9/11 on academic freedom vary greatly depending on locale and time (softening with the passage of time), and even within the same community, and likely within the same schools. This variability makes it difficult to offer generalized responses without accompanying caveats.

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 would seem to be the case that pressure on Iran to acquire nuclear weapons is almost totally driven by their need for a deterrent capability to avoid the fate of Iraq, Libya. The use of American military force in Syria thus sends exactly the opposite message as supposedly desired to the leadership in Tehran - and to others. North Korea has been dealt with diplomatically because it has the bomb and might use it if provoked.

I don't like to end my talk with a 700 million dollar loss, even if it shows the importance of Numerical Analysis.

On the one side, I welcome prosecutions of individuals such as Pinochet, and would welcome the indictment, prosecution, and punishment of Kissinger. On the other side is the geopolitical reality that only those in the global South are likely to experience the impact of Universal Jurisdiction.

The atmosphere of fear and security manipulated by the government has converted American citizens into terrorist suspects who are all subject to arbitrary and unreviewable detention and surveillance.

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.