Well, I wouldn't end it with Jim Hoffmans site. The guy is a very dubious character. And his counter is typical of steering the evidence (or in there case lack of) toward a single answer vs. letting the evidence speak.
EG - his 'implausible' bullet points. All I can say from my own experience the guy is full of poo. I've seen a total powerdown in a building I've worked in for wiring upgrades. (Not that it matters as the claim is that is what was told to him. The claim is not that it was needed to upgrade the system. Obviously Forbes saw it as a bogus cover for rigging the building) Security cameras typically DO NOT have independent power backups...regardless its something he counters with no basis for the contrary.
...and of course its what disinfo ppl like this leave out that's the most egregious. Fact: NY papers reported the removal of the bomb sniffing dogs on the Thursday before the attack, sourcing employees of the security contractors for the building. And isn't just a happy coincidence that it was Marvin Bush's company that provided the entire security management of the buildings.
...and these statements regarding their removal were submitted to the 9-11 Omission - of course, like everything else - they were not mentioned at all in the commission's findings.
Scott Forbes did an interview and it should be on youtube. AFAIK he was the only survivor of those in his company that worked there.
There are pictures out there that WTC office workers took of the dust that covered their offices after various weekends of drilling and God knows what on these sealed off and guarded floors above/below them...
BTW - that article on the thermite was previously published as a peer reviewed study in Chemical Physics journal
Some Glenn Beck for comic relief