By Stephen Addison and Adrian Croft LONDON (Reuters) - Margaret Thatcher, the "Iron Lady", was a towering figure in British 20th century politics, a grocer's daughter with a steely resolve who was loved and loathed in equal measure as she crushed the unions and privatized large swathes of industry. She died on Monday, aged 87, after suffering a stroke. During her life in politics some worshipped her as a modernizer who transformed the country, others bitterly accused her of entrenching the divide between the rich and the poor. ...