Didn't limit yourself to just IT auditing - Look into certification bodies like SIS, NQA, TUV etc.

For most news publications, the article and the headline are written by different people.

Leave the concrete in the ground, cut the metal (Line posts & Terminal posts) off flush with the concrete/ground, install matching vinyl fence with standard panel spacing.
The metal posts are typically 16 gauge (~1.3 mm) tubing... walls are thinner than the fencing itself, which is usually somewhere between 11 gauge (~3 mm) and 12 gauge (~2 mm). Depending on how many posts you have, you could easily do this with an angle grinder (cutoff wheel) or reciprocating saw (metal or multi-material blade)

By video, do you mean 8 photographs of the aftermath? There is no video on the nbcmontanna article.