On 6 August 2010 , Wilders , who had become a regular guest with American conservatives and libertarians , announced that he would speak at a rally on 11 September in New York to protest the plans for Park51 , a Muslim community center with a prayer space to be built near the World Trade Center site . The rally , to be held on the ten-year anniversary of the 11 September 2001 attacks , was organised by Stop Islamization of America , which was supported by former House speaker Newt Gingrich , who was originally announced as a speaker at the event , but never confirmed his appearance and cancelled a video appearance . According to SIOA 's website world leaders , prominent politicians and 9/11 family members would be speaking at the rally , but Wilders was not mentioned by name , though he did attend as he had announced
11 September 2001 attacks
September 11 attacks
Geert Wilders