I don't think Americans realize the degree to which they are the main subject of Russian television news. Every night there's news from the United States and scandals about the United States, and every night the United States is shown to be an enemy of Russia over and over and over again. And this is, of course, useful to the Russian president, because it's, we have this big and important enemy - you need me here to fight back.

High national emotions are permissible when a soccer team is playing precisely because they are impermissible at most other times. There aren't, simply, many other places where you can sing your national anthem until you lose your voice without causing a riot. In the context of soccer, flag-waving nationalism - even chauvinistic, anti-foreigner, flag-waving nationalism - is acceptable in Britain.

Putin is not a mass murderer. But, having said that, he is a product of the KGB, and the KGB was, of course, the secret police force of the Soviet Union.

Most of the people buying the Soviet paraphernalia were Americans and West Europeans. All would be sickened by the thought of wearing a swastika. None objected, however, to wearing the hammer and sickle on a T-shirt or a hat. It was a minor observation, but sometimes, it is through just such minor observations that a cultural mood is best observed. For here, the lesson could not have been clearer: while the symbol of one mass murder fills us with horror, the symbol of another mass murder makes us laugh.

Putin imagined it would be different. So, like many Russian leaders before him, he imagined that Ukraine was basically Russia, but they speak with a funny accent. Actually, it's not Russia; it has a different identity. It has a very different language. Russians don't automatically understand Ukrainian. And, in particular, the way Ukraine has developed over the last two decades is different from the way Russia has developed.

What is the appeal of Trump, really? It's nostalgic: "Make America great again." Like European nationalists, he has a vision of a "real" America, one which predates globalization, immigration, feminism, the civil rights movement and technological change, an imaginary 1950s to which we can now return. That is actually not very different from the kind of language that Marine Le Pen uses, or parts of the Brexit movement.

I don't think Vladimir Putin and Donald Trump really have friends. But Trump has openly admired Putin for many years, with no reservations. He even seems to idolize him. Neither his cabinet appointees nor the civil servants in the Pentagon and the State Department feel the same way, however, so we don't know what this admiration will bring.