This document provides a first-hand account from Bob describing his visit to Ground Zero four days after the 9/11 attacks. Some key details include:
1) Bob and Yael were able to get rare access to Ground Zero and saw the extensive damage to the area, including destroyed storefronts and vehicles.
2) At Ground Zero, they witnessed the recovery efforts including bucket brigades passing debris, search dogs looking for survivors, and welding crews working amidst the rubble.
3) The next day they visited Union Square where thousands had left memorials, candles, and missing posters to mourn the victims and show support. People of all backgrounds came together in grief and solidarity.