Governments should purge banks that are big enough to hold the system to ransom . Or they should seek to slice through the entanglements , cordoning off the dangerous bits .
政府应当整饬那些大到能够要挟系统勒索赎金的银行，或则寻求快刀斩乱麻，把危险的东西隔离。
Russia 's emergency services appeared to be working in an orderly and co-ordinated way , cordoning off only the areas immediately affected by the explosions .
