Un legame messo a dura prova, ma indissolubile.

For in the end, no matter what China’s leaders tell Mr Obama when he visits Beijing later this month, economic and political liberty are linked—not as tightly as people hoped 20 years ago, but still linked. Look forward, and China’s internet-obsessed emerging middle class will surely have an appetite for liberty beyond the purely economic. Change could happen as unexpectedly as it did in 1989. Even the most fearsome fortresses of repression can eventually be breached. Then it was Honecker and Ceausescu; tomorrow it might be Castro, Ahmadinejad or Mugabe; one day Chávez or even Hu.

(The Berlin Wall. So much gained, so much to lose)