<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> As Mayor of New York City during the September 11 attacks in 2001, Rudy Giuliani played a visible role in the response to the terrorist attack against the World Trade Center towers in New York City . For this he earned great praise at the time . </P> <P> In September 2006, Village Voice writer and long - time Giuliani critic Wayne Barrett and Dan Collins, a senior producer for CBSNews.com, published The Grand Illusion: The Untold Story of Rudy Giuliani and 9 / 11, one of the strongest reassessments of Giuliani's role in the events of 9 / 11 . The book highlights his decision to locate the NYC Office of Emergency Management headquarters (long - identified as a target for a terrorist attack) on the 23rd floor inside the 7 World Trade Center building, a decision that had been criticized at the time in light of the previous terrorist attack against the World Trade Center in 1993 . </P>

Who was the mayor of new york city on 9 11