British Tourist Attractions Increase Security After German Market Attack

LONDON, ENGLAND - DECEMBER 21: A security marshal walks amongst Christmas stalls at the Winter Wonderland in Hyde Park on December 21, 2016 in London, England. Winter Wonderland is an annual event in London's Hyde park with fair ground rides, Christmas stalls, markets and entertainment for all ages. Security at major landmarks and events has been increased following the attack in the Berlin market outside the Kaiser Wilhelm Memorial Church. (Photo by Chris J Ratcliffe/Getty Images)