I seem to recall some contact of Les Stroud's (probably from a clip of a "Survivorman: Bigfoot" episode), alleging that in a remote area in Canada a
military team was alleged to have helo'd-in, repelled-down into an unprepared area, and eliminated a group of (also alleged obviously) Sasquatch.
It's also been mentioned in the past, that various federal government officials in the US, down to the forest-Ranger level know about these creatures,
and participate in covering-up their presence.
I have often wondered, if that were the case, why would they do that? The only reason I could really think of is to prevent their presence from
impacting commercial exploitation.
For example, if somebody found a legit Sasquatch body tomorrow, and it was fully vetted, examined by a major university and declared a known and
documented new species, what would happen next?
I postulate, that it might be declared "Endangered" species (or a less-severe conservation classification, see
Wikipedia). If that were the case, that might automatically kick-in certain protections
of their "habitat". That could mean an end to logging where it exists in many places today, and end to oil & gas exploration in those areas, etc.
As far as alleged "kill teams" go, I would think there would have to be some threat to human life. Maybe a particular individual kills a human, and
much like is done with other wild animals that kill a human, that results in calls the hunt-down and eliminate that particular animal. If these
creatures are very communal and intelligent, we might really be talking about taking-out and entire group (family, tribe, whatever that would be).
Anyway, just my thoughts.