On September 11 2001 terrorists exploited the transportation sector of the Natio

On September 11 2001 terrorists exploited the transportation sector of the National Critical Infrastructure (CI) and illustrated how an attack on CI segments can have a ripple effect on the national economy. For this paper discuss five national critical infrastructure segments where in your opinion any future attacks will result in catastrophic events. Name the CI segment and explain what the catastrophic events might be because of an attack. Provide the reasoning for your conclusions.