The Baltic states can no longer cast themselves in the role of a bridge between Russia and the west, the Latvian foreign minister, Edgars Rinkēvičs, has said in an interview with the Guardian. Successive crises have shown Russian determination to interfere in western democracy or use Baltic banks to launder corrupt money, Rinkēvičs said after a visit to London during which he met Dominic Grieve, the chairman of the UK intelligence and…