FILE - In this May 11, 1987 file photo, the then Britain's Prime Minister Margaret Thatcher waves to members of the media on returning to No. 10 Downing Street from Buckingham Palace after a visit with Queen Elizabeth II. Thatcher was Britain‚Äôs first female British prime minister and the country‚Äôs longest serving leader for more than 150 years. Her government followed a radical program of privatization and deregulation that profoundly changed the country. (AP Photo/Dennis Redman, File)