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Hello and welcome to the intelligence from The Economist. In London, I'm Jason Palmer.

And in New York, I'm John Fastman.

Every weekday, we provide a fresh perspective on the events shaping your world.

Since the start of Russia's invasion, Ukraine has been pleading for more artillery.

But few weapons have been as effective as American-supplied High Mars rocket launchers. We look at the

precision missiles that are changing how the war is fought. And here's a riddle. Where can you find

smallpox, herpes, dysentery, Dutch elm disease, and a bit of influenza from Alexander Fleming's nose.

No, it's not in the world's most disgusting bus station loo,

but in some of Britain's most important collections.

First up, though.

Protests are not uncommon in China, but when they do crop up, the country's vast security

...