A planned addition, including an obelisk echoing the IBM Building and a slab of fritted glass at the Madison Avenue corner, was canceled in 2001 because of the economic downturn.Herbert Muschamp, "A Lesson Abroad: Get Comfortable with Continuity", The New York Times, February 24, 2002, repr. in Hearts of the City: The Selected Writings of Herbert Muschamp, New York: Knopf/Borzoi, 2009, , pp. 689+, p. 691.
