War on terrorism defines the central preoccupation of the United States in the world today, and it does reflect in my view a rather narrow and extremist vision of foreign policy of the world's first superpower, of a great democracy, with genuinely idealistic traditions.

The day that the Soviets officially crossed the border of Afghanistan, I wrote to President Jimmy Carter: We now have the opportunity of giving to the USSR its Vietnam war.

We look a little bit disorderly, indecisive, leaderless. That's a real problem, and that's a problem that concerns me particularly on foreign affairs. The presidency, not just President Obama, but the presidency in recent years has lost some of the terrain that they used to dominate in the making of foreign policy. I think President Obama has to make a serious effort to regain it because he lost some of it himself.

Yes, ISIS is a threat. It's more than a nuisance. It's also in many respects criminal violence. But it isn't, in my view, a central strategic issue facing humanity.

I think President George W. Bush contributed very directly to the fact that the status of America as the world's only superpower lasted for 20 years at most.

In the technotronic society the trend would seem to be towards the aggregation of the individual support of millions of uncoordinated citizens, easily within the reach of magnetic and attractive personalities exploiting the latest communications techniques to manipulate emotions and control reason.

War on terrorism defines the central preoccupation of the United States in the world today, and it does reflect in my view a rather narrow and extremist vision of foreign policy of the world's first superpower, of a great democracy, with genuinely idealistic traditions.