Hard Evidence!

[William Seger]

10. The only miserable failure I see is your failure to read carefully

Concrete is not mined. Here, I'll shorten the quote and add some emphasis:

Thus, for example, spherical charges of 10 kg TNT-equivalent placed 0.5 m above
a 3 m x 1.5 m area, 15 centimeter thick concrete slab produce a post-detonation crushed
zone only about 30 cm in diameter.

Maybe it's the metric units that confused you? It says that 22 pounds of explosives placed a foot-and-a-half above a concrete slab produced a damaged area a foot in diameter. Cutter charges on columns don't crush any concrete, but conventional CDs depend on gravitational energy to crush everything and obviously it works quite well. It's a shame you can't appreciate how absurd it is to claim that many tons of magical silent explosives were placed all over the floors of an occupied office building to pointlessly crush the concrete, but that doesn't make it any less silly.