The 9/11 Memorial , "Reflecting Absence" designed by Michael Arad, is a beautiful and moving tribute to those who perished in the terror attacks of September 11, 2001 at The World Trade Center, The Pentagon, and on Flight 93 in Shanksville, Pennsylvania. However, so many people who worked on the pile at Ground Zero in the rescue and recovery effort, as well as Lower Manhattan residents and returning workers, were exposed to a lethal cocktail of chemicals, pulverized concrete, and carcinogens. Thousands have become gravely ill and many have died terrible deaths. 9/11 killed them later. They should be honored with a memorial wall on the plaza, not just an exhibition in the unfinished museum,