Changes were made to security and structure following the 9/11 attacks. The events of that day led to a reshaping of these areas.

Further details about the changes are available from insideflyer.com. This source provides more information on the impact of the 9/11 attacks on security and structure.

The insideflyer.com website is a resource for those looking to learn more about how the 9/11 attacks led to changes in security and structure.