15 years after the attack on the Twin Towers, the sting is still felt as fresh as the day it happened. When the planes hit, America was changed forever; as the towers fell, a greater sense of patriotism and unity emerged. 9/11 is a tragedy that America is still feeling the effects of today, but from it, a lesson was  learned. America was taught resilience; the nation was faced with a problem and, through determination and national pride, was able to rise up and prevail. The loss caused by September 11 was severe, but this year, as America mourns those we lost that day, try to also remember the strength America gained.