In this Monday, Oct. 29, 2012 file photo, seawater floods the entrance to the Brooklyn Battery Tunnel in New York in the wake of Superstorm Sandy. If metropolitan New York is going to defend itself from surges like the one that overwhelmed the region during Superstorm Sandy, decision makers can start by studying how others have fought the threat of fast-rising water.(AP Photo/ John Minchillo, File)
{}