Everyone moans about the collapsing U.S. infrastructure.

There's no longer any surprise in noting that China has grave environmental problems.

The Olympic Games are for 'the youth of the world,' but they're organized and scored by countries. It's no surprise that countries treat them as vehicles of national pride, and assume that their people will be most interested in their own athletes. So anybody who was saving up to write an angry letter, blog post, or op-ed about NBC's chauvinistic coverage: don't bother! They're actually more above-the-fray than most. Also, their coverage is not shown anywhere except America - I know, it's because I can't get it that I'm watching Women's Air Pistol - so can't ruffle feathers elsewhere.

The amazing thing about Trump is that he is so completely predictable. Hillary Clinton knows that if she teases him about either his wealth, his taxes, the women who are coming after him or his preposterous claims of being against the Iraq war, he cannot resist.

I don't think anybody who is already with Donald Trump is going to be peeled off by his not knowing about NATO or why Japan does not have nuclear weapons, or things of that sort.

The Hawk and the Dove is a wonderful idea for a book, wonderfully carried out. Nicholas Thompson has used illuminating new material to present each of his protagonists in a convincing, respectful, but unsparing way. Even more valuable, he has used the interactions and tensions between Paul Nitze and George Kennan to bring much of American 20th century foreign policy to life, with human richness ever present but with the big issues clear in all their complexity.

No one ever really 'learns' from history, because choices never present themselves in exactly the same way, and because you can always choose similarities and differences to fit current needs.