I know what Gladio was, the NATO stay-behind operation in Italy. However the argument that something happened once therefore it is happening all the time is pretty flawed. Nobody would ever suggest that the existence of Gladio means that flase-flag operations are standard practice or the default mdoe of operation for the IC.
But without any sort of oversight, accountability, or really any of the sort of mechanisms that should be in place for this to be considered an agency of a functional democracy, we have to assume that if they have the ability to do it with a very low chance of getting caught, and they've already done it in the past, there's a fairly good chance they're doing it again.
We won't assume they are 100% still doing it, but there is a significant non-trivial probability that they are, and in what we like to call a democracy, this is very very wrong.