Newly-released government files show officials feared a backlash if the widow of notorious Cambridge spy ring member Kim Philby was paid to secure his archive for the British Library. The library wanted to acquire the archive in a deal worth tens of thousands of pounds to his widow, according to papers released by the National Archives in Kew. Officials were horrified the library would be party to an arrangement enriching the family of a man whose treachery was blamed for countless agent deaths. The library sought to reassure the government no public money would be involved and it was seeking …