The Empire State Building and the 'Freedom Tower' are seen during sunset from the Rainbow Room in New York, on September 9, 2021. AFP PHOTO
FOR those who remember the shocking events of Sept. 11, 2001, it is difficult to grasp that 20 years have passed. An entire generation has reached adulthood in what those of us who are older - particularly the Americans who witnessed the terrorist attacks on New York and Washington, D.C. firsthand - still sometimes refer to as the "post-9/11" world. Just as the younger generation may someday think of their world in terms of "before" and "after" Covid-19, Sept. 11, 2001 is a dividing line for those who were old enough to witness and understand what happened. One world ended and another began.