Historically, cities have used walls to keep out threats from enemies, intruders, and invaders. They were instituted as modes of militaristic self defense. Today, Hoboken is proposing walls to keep a new enemy out - water. Rather than providing piece-meal solutions for each individual structure, the mayor is proposing a more holistic approach. However, can a wall really be enough? Hear more here. I believe the mayor's approach is a step in the right direction to think on a more urban scale. However, there may be a more suitable and radical solution that can occur through research and consultant design collaboration.