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On September 11, 2001, tragedy struck as two commercial airlines hit the World Trade Center in New York City. As people in the buildings’ upper floors rushed to escape to freedom, they tried to evacuate through the staircases, staircases that were no longer functional. The building’s designers did not put a sufficient number of stairwells to escape from in an emergency as drastic as this, although it was up to code at the time. Since these tragic events, people have revised their escape route preparations and building design to improve the chances of people making it out of a building alive. There has also been an effort to create agencies designed to fight terrorism and to prevent further attacks on our nation. The building codes and safety procedures put into place by city planners and government officials have made our nation safer and better-prepared to stay calm, maintain order, and keep everyone protected during a crisis by learning from the events of 9/11.During 9/11, many failures and glitches in the design of the building were the cause of many fatalities. For example, since there were only a couple staircases in the building, all of them were cut off by the plane (Dwyer 20). If there were more in the building, one or more might have been free for people to evacuate. Underneath the building, there was an underground concourse that was a safe exit route underground. When the designers created 1 World Trade Center, they only designed the central stairwell to reach the concourse level. This meant that everyone trying to evacuate through that exit needed to cram through one staircase. There was no other working way at the time (Duenes 167).Another major error with the building was with the design of the elevators. Elevators were created to have their doors lock if the elevator was not within four inches of the nearest floor. This meant that unless the elevator was luckily near a floor, all the people on the elevator were trapped. Anyone who was trapped spent all their energy trying to get out, even to the point of breaking through the drywall (Dwyer 153). If there was some sort of safety release, people’s lives would have been saved. Finally, the materials used in the buildings’ construction was not as fireproofed as it should have been. Many shortcuts were taken to cut budget costs on the building, which although up to code, did not function well enough from damaging the building’s internals. This is believed to have been the main cause of the buildings’ collapse, which some say was even more deadly than the actual plane crash (Corley). If a little more care and effort was put into the protection of the building, the day would not have happened the way that it did.Since 9/11, there has been a national effort to make buildings safer and prevent any more devastating events. Organizations are doing everything they can to improve the flaws in building design and any other threat to the safety of the people in a building. For example, the National Fire Protection Agency has collected data on sprinkler effectiveness and adjusted the recommended fire-proofing of building materials accordingly. These fireproofing materials were not as well put on as they could have been in the World Trade Center, and if they had been, the damage might not have been so drastic. Sprinklers do not always work to put out fires, and with an event has big as a plane crashing into a building, they definitely will not put the fire out by themselves (Corley). In order to prevent further attacks on the United States, the government has established a few agencies that are designed to help fight terrorism. These include the Department of Homeland Security, the Transportation Security Administration, and many others. They have since uncovered and prevented numerous terrorist plots against the country and a number of planned attacks. The war against terrorism has also been fought by multiple other countries on a global scale. The United Nations has implemented the United Nations Global Counter-Terrorism Strategy, something that seeks to prevent terrorism at its birth, instead of stopping something that has already been developed (“Terrorism in the Twenty-First Century”).The events of 9/11 impacted the United States forever, and the many lives lost play a major part in the memories of that day. Had people been a little more proactive when it came to the safety of the way the buildings were made, things would have been much different. Even just one more staircase or a little more fireproofing would have been enough to save the lives of possibly hundreds. America has learned its lesson through these terrible events and adjusted safety measures accordingly. Hopefully, the new measures put into place will prevent another horrific day from ever happening again.