One World Trade Center, top right, is reflected in the glass pavilion of the National September 11 Memorial and Museum, Monday, Feb. 25, 2013 in New York. Tuesday will mark the 20th ann

 

              One World Trade Center, top right, is reflected in the glass pavilion of the National September 11 Memorial and Museum, Monday, Feb. 25, 2013 in New York. Tuesday will mark the 20th ann
One World Trade Center, top right, is reflected in the glass pavilion of the National September 11 Memorial and Museum, Monday, Feb. 25, 2013 in New York. Tuesday will mark the 20th anniversary of the terrorist bombing beneath the World Trade Center that killed six people in 1993. (AP Photo/Mark Lennihan)