Just for kicks, try this instead......
CTer: Hey BombDr, Iv found a way to destroy a burning building with explosives.
BD: OK, How much explosive would you need?
CTer: I don't know About 2 - 4 lbs of incendiaries every 6th or 8th floor per core column for pre-weakening cuts. and around some similar quantity, maybe less, of something a bit more concussive to actually drop it. So all in all about 1200lbs for the columns, we'll need to do a fair bit of weakening around staircases too, so let's say 2000lbs to be safe.
BD: How much detcord would you need?
CTer: I don't know.. None. Look here's a paper as an example of how we could do it, it's called "Microchip Ignition of Nanothermite Materials". We can use UHF and ICs to do this and these charges would be self consuming. There might be a bit of molten iron left over afterwards, but it's not like we need to hide anything, so we can just be totally open as to why it's there. It's not like we won't have to deny its existence or anything if people see it.
BD: How will you get it into the building covertly and strip off the facade, lay the charges, fix the ring main firing cables and defeat the RF Hazard?
CTer: I don't know What we will do is this. We will put the alarm on test, 8 hours a day for a week or so before the main event so that any hot work we do doesn't show up specific to any zone in the building and no-one has a record on or off site. There's plenty fire cupboards and the like for us to get access from and we can manufacture the material containers to bolt straight on to save time. It's not rocket science, and if we do it over a space of a few weeks, we need only lay 30 or so max per night, less in fact. Tell you what, after we have the alarm on test, we can use that as an excuse for access at strange hours.
BD: How will you insulate the explosives, which are flammable, from the fire for 6+ hours?
CTer: I don't know It's ok, these won't go off under 430C and the columns won't get to that temp, look, even NIST say that in some random report I happen to have read. Even if a few go off and people report explosions going off, it's not like we have anything to hide is it. We can just be honest and tell them that some charges exploded a bit early. Just so long as there aren't any people near the main stairwells around floor 5 or 6 early on, cos we really need to hit that hard, if we don't, the centre of gravity in the building will shift as it descends and it will tip too much. So we need to make sure nobody gets blown back upstairs and stuck in the building. Especially that lawyer Hess and the other guy, what's his name..... Jennings. They're always wandering about that area around about 10AM, possible slightly later.
BD: How will you initiate the charges and make sure that not a single scrap of firing cable, detcord, uninitiated electric detonators, cutting charge copper residue and undetonated charges are ever found?
CTer: I don't know Do you have some kind of goldfishlike memory or something, we talked about this not 5 minutes ago. We use self consuming charges and UHF to initiate via ICs. No detcord, the ICs will melt once initiation has happened, no copper and if any don't go off, we just need to make sure that no-one tests the dust for residue, Oh, one thing though, the dust might contain tiny pear shaped iron rich residues because of surface tension and the concussive nature of this whole thing. They could get carried all over in the dust, so we need to call USGS to make sure they don't go publishing their finding 5.8% of the dust is made up of them or anything daft like that ok. You can do that, cos you have a great memory.
BD: How will you make it a silent detonation?
CTer: I don't know... There might be a bit of noise involved, but we can clear the building area, and if anyone reports hearing explosions we can just say they must be imagining it and ignore their testimony if it doesn't suit us. It's pretty quiet really so it won't be a problem. In fact, I got one of my pals to make this video for you to reassure you re the noise. In the scheme of things it's not that loud. Maybe if we had 2 massive diversions maybe 300ft or so away, it's not like anybody will notice. Anyhow the video is here watch it around the 8-9 minute mark, it should be enough to reassure you.
BD: I don't f*****g know either... Let's get it on.....