Well sure, I understand the implication you're making (something like "the government is investigating a problem that's mostly, but not completely, caused by go

Well sure, I understand the implication you're making (something like "the government is investigating a problem that's mostly, but not completely, caused by government policy and has determined that things are fine, and we should be skeptical of this conclusion because of the inherent conflict of interest"). But ... it's still useful to take what CBO says as another data point to calibrate how you think about these things on your own. It's not completely useless.