Investigative journalists at ProPublica say “yes”. They report that in the years leading up to Superstorm Sandy, the federal agency ignored state and city officials’ appeals to update the maps with better data until it was too late.

And the cost of inaccurate data to New York City and other areas is high. ProPublica quotes the Executive Director of the Association of State Floodplain Managers, who maintains that “the absence of accurate flood maps could lead to an ‘entire cascade of impacts’: higher costs to taxpayers in the form of disaster assistance, higher likelihood of injury and death for residents, lost tax revenue and damaged infrastructure after flooding occurs.”

[Read more at ProPublica]