Workers are busy working with the funeral preparation of the late British former Prime Minister Margaret Thatcher outside the St. Paul's Cathedral in the city of London on April 14, 2013. Over 2,000 guests have been invited to the April 17 funeral of Margaret Thatcher at St. Paul's Cathedral including global political figures, celebrities and even a couple of Thatcher's old foes. The 87 year-old former prime minister died after suffering a stroke on April 8. [Photo/Xinhua]