I would like NCPC to consider how demolishing the Forrestal Building (and constructing new buildings) is a green practice? The energy used in demolition and rebuilding will far outweigh any LEED rating a new building is given. Not to mention the amount of debris and greenhouse gases that will be generated. The Department of Energy recently did a study to figure out how the building could be renovated to achieve LEED Platinum. It is very possible and at much less economic and environmental cost than demo/re-build. It is far more greener or "eco" to re-use an existing building.
Also, this building is approaching 50 years old and was constructed by a prominent mid-20th century architecture firm. I believe GSA is currently determing if this building is eligible for the National Register of Historic Places.