"FILE - British Prime Minister Margaret Thatcher listens to the opening debates during the Conservative Party's conference at Blackpool in this file photo dated October 1983.  Papers from 1981, released Saturday March 17, 2012, by the Margaret Thatcher archive at Cambridge University in England, reveal a thoughtful softer side to the British leader who earned her nickname ""The Iron Lady"", and also show something of the personal relationship between Margaret and her husband Denis. (AP Photo/David Caulkin, File)"
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