To extradite Mr Lugovoi or try him at home would be kowtowing to the West (and betraying a KGB ex-colleague); by doing nothing, he may seem to be protecting a murder suspect.

• 引渡卢格沃或是在国内审判他将是向西方磕头（并且背叛前KGB同事）；而什么都不做，他则似乎成了要保护一名谋杀嫌疑犯。