On September 18 , 2010 , tens of thousands of Germans surrounded Chancellor Angela Merkel 's office in an anti-nuclear demonstration that organisers said was the biggest of its kind since the 1986 Chernobyl disaster .
On September 18 , 2010 , tens of thousands of Germans surrounded Chancellor Angela Merkel 's office in an anti-nuclear demonstration that organisers said was the biggest of its kind since the Chernobyl disaster in 1986 .