I think I read that the diesel fuel was stored there because of Mayor Guiliani, something to do with the anti-terrorism headquarters being located there? I’m not sure of the details, but I know he has gotten some flack for locating it there after the WTC bombing in 1993.
Knock down that one allegation and there are 50 more to take its place. The real purpose is to sow distrust of the system and the powers that be, and most especially of logic and replace it with emotion. Donald Trump said Rosie is a bully, and that is correct. She shouts to overpower your reason and decorum with her emotion.
According to the rebuttal Popular Mechanics published in response to Rosie’s blathering, there was a major NYC disaster command and communications center in WTC7, so they had some pretty hefty on-site generating capabilities to support that. There were several fuel tanks in the building, including two 6,000 gallon fuel tanks in the basement.
Here’s the link:
http://www.popularmechanics.com/blogs/911myths/4213805.html