Just as a clarification to others: NIST's NCSTAR 1-2, table 7-6, p. 228 summarizes the core damage to WTC 2:
[qimg]http://www.internationalskeptics.com/forums/imagehosting/12386493ae55f690c9.gif[/qimg]
And they say this about the damage:
A more detailed analysis can be found in NCSTAR1-2B. As can be seen in the table, NIST's analysis holds that 10 columns received damage, several of them across multiple floors with 5 of them being completely severed. This stands in stark contradiction to other claims that the core was not damaged. An explanation of how 9/11 truth researchers came to that conclusion would be welcome.