Exactly, the problem is "oversight", particularly about how the collection
of data is processed and what is being done with its output.

Overall oversight (and not particularly on this subject) seems not be
working very well in the US, is completely dysfunctional in ICANN and
nonexistent in the UN, and in some particular where it does not exist at
all, surveillance is used for the political benefit of the party in power
to control, suppress or limit its opposition.

So the question is, who is qualified to establish a supra national
organization to oversight ? not ICANN, not the I* orgs, not the ITU, who ?

While intelligence agencies and organizations keep getting the mandate and
funding, they will continue to do what are they doing and trying to scale
and improve their capabilities, and there is no international organization
or forum that will be able to change domestic policy.

-J