MoMA to Raze 12 Yr Old Architectural Icon.

The Ex-American Folk Art Museum building may go down in history as the best building with the shortest lifespan, as MoMA has announced plans to raze the 12 year old building. Despite it having been praised for it's design at it's opening, the museum has stated that differences in lighting and floor-plans make it unable to adapt the current structure to it's adjacent, existing galleries. Take a look...
http://www.nytimes.com/2013/04/11/arts/design/moma-to-raze-ex-american-folk-art-museum-building.html?ref=design

I can't say for sure as I don't know the long list of details..but I think agree with this commenters sentiment...

There is so much wrong with MOMA's decision that one hardly knows where to begin.
The former Folk Art Museum building was an ingenious and pleasing design solution to the problem of fitting a museum into a townhouse-size plot. Its facade, from a different time period and aesthetic from MOMA's historic facade, is every bit as interesting. In-between the two facades is the banal MOMA tower. If the Folk Art Museum building doesn't fit with the "glass aesthetic" of MOMA, as expressed in that tower, good for it!
Philosophically, it's difficult to comprehend MOMA's decision to raze "a notable work of 21st century architecture by noteworthy architects who haven’t done that much work in the city...a beautiful work with the look of a handcrafted facade,” per Andrew Dolkart. It's ironic that MOMA's own recent expansions have been big and brutal, apparently more concerned about floorspace than aesthetics. With this decision to raze the Williams-Tsien building, MOMA cements its position as the museum as corporation.
It is to be hoped that this decision will take its place in history alongside the decision to raze the old Penn Station. However, this time, it's a supposed arbiter of cultural history making the decision, not a real estate developer focused on profits. - Francis Flute.