I'm not trying to give any definite answer. What I'm trying to prove is that we have enough gaps, enough discrepancies, enough simple falsifications to conclude that probably this history was an invention of a later time.

My mother lives in Moscow, and I would like to visit her. Now she always has to travel to Finland or a Baltic country to meet me. But I have to expect that my papers would be confiscated in Moscow immediately, and that they would harass my family. I can still have more impact in the West with my books and lectures.

I'm not paranoid, but I am cautious. I don't drink tea with strangers, I don't fly Aeroflot and I avoid certain countries with close ties to Russia.

I'm not saying that George W. Bush did everything right. But even if you take a skeptical view of his Iraq war, [Barack] Obama made the more serious error of withdrawing his troops from Iraq early.

We see threats to liberal democracy coming from lots of directions. We have to create something new, a common response, because in so many places - the UK, France, Germany - ultranationalists and the far left threaten the free market and liberal democracy.

Vladimir Putin is the bigger danger than Donald Trump because Trump can be dealt with within American democracy. There is an independent judiciary. He cannot overrule American courts. He will have to play by some rules. He will do damage certainly, but to do real damage I think he is too weak. Putin is aggressive wherever he can be. In Europe, in Germany, Putin will not stop.

I have some security that could protect me against provocations but of course there are more terrible actions that could not be stopped by any security.