Sonic Memorial Special: Early Days of the WTC [Radiobroadcast]An exerpt from the Sonic Memorial Special produced by the Kitchen Sisters and narrated by Paul Auster, a montage of audio relating to the early days of the WTC. Minoru Yamasaki was interviewed in 1960. Guy Tozzoli then recalls his interactions with Yamasaki. Philippe Petit walked a tightrope between the two towers in 1974. Head engineer Les Robertson discusses sway in the wind.