After Russia’s president proposed vast constitutional change, the whole government resigned. It seems to be another convoluted power-grab by Vladimir Putin—and it seems likely to work. Our correspondent finds that the tired stereotypes European Union countries have about their neighbours are pervasive even at the heart of the European integration. And the surprising and nefarious world of sand-smuggling.  For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer