Epistemic status: Big if true/I am clearly an idiot for even posting this.
Some apparently real journalists have been approached by (& approached) several intelligence officials, some tasked specifically with investigating UFOs, who claim that the DoD has had evidence of alien intervention for a while in the form of partial & mostly-whole fragments of alien aircraft. A followup article where the publication outlines how the editors verified this persons' and others' claims and affiliations is here, and a part 2 is expected tomorrow.
For some reason - very possibly because it's complete nonsense, or because they haven't had time to independently verify - the story has only been picked up by NYMag so far. The consensus among the people I've been reviewing this article with, is that it's either a complete hoax (i.e., the entire thing nearly top to bottom is some deliberate deception) or there's a non-negligible (>5%) chance aliens are here. I would love for someone who has a good understanding of the material to give an explanation (including possibly on priors, just thinking clearly about the content of the article) of why my friend group should discount this out of hand.
Thus far I have been unconvinced by most stories of why we should to-the-point-of-not-caring-about-UFO-sightings-expect Aliens have to be big and obvious and tile the universe with fun, as opposed to operating some sort of noninterventionist monitored lightcone.
So Grusch is another one of these Pentagon UAP investigatory program guys, which means he is claiming people have come to him from the compartmentalised Special Access Programs claiming they have recovered craft. That is important because unless he is saying somewhere he personally witnessed these craft, it is perfectly possible he fully believes his claim and is telling the truth in that yes, someone has come to him with these claims. Unfortunately I suspect whoever these first hand sources are will be shrouded entirely in classified red tape. I agree at this point a sophisticated and extensively planned hoax/disinfo operation is becoming increasingly likely and if I was totally sceptical I think that would be the best explanation. However, I don't intuitively think aliens/non human intelligence is highly unlikely because I don't trust my or others ability to model possible behaviours. For instance, the idea that this is all clearly nonsense because super advanced aliens wouldn't have malfunctioning/rudimentary craft at all- it could be that it is simply a form of interaction/manipulation.