It's not all a lie, but so much bullshit has been dumped out as disinfo trying to find the bits that are not lies is hard.  Separate wheat from chaff.   Everything from elections to city hall lies most of the time and unless somebody looks and asks, they're happy believing the lie.  Up to a decade ago, everybody thought MSM had their best interests at heart and told them only the truth, or "wouldn't lie to them on something 'big' anyway".

There are things in the sky that have been unknown and illustrated long before modern airplanes.  Stands to reason that at least something of that tech was located.   I'm guessing the first 1950s and 60s era saucers were a combination/hybrid Human / NHI hybrid of some sort, and recent improvements in electronics, power and materials have allowed the US secret squirrel operators to build craft from the ground up while dropping in bits they don't know how exactly it works, like power and gravity tech.  

Too many people have seen them, too many official documents refer to UAP of unknown and even NHI origin (NOT the same as "aliens from another start system here to probe us").    Although it has been said that some are relatively benign (like looking at an ant farm), and some are hostile but some agreement was met - that's the secret everybody hints would rock the world and not in a good way

Why would they put so much into saying it is real, then flip flopping, then flip flopping again over a period of 70 years with some very high ups talking about it despite the stigma that comes along with even thinking about such things.   They sure aren't getting rich off of it (Well, maybe Greer the grifter, but he's selling the sizzle rather than data).  There's absolutely no reason somebody would trash their reputation and career, especially flying for major airlines and .mil, just to make a joke and be in on some odd secret.

In the past 6 years, UFOs have gone from somewhat deniable things only people loose screws care about to being documented as fact under oath to congress, promising they'd turn over information, then renigging on it, which is what Grush is saying - this info was supposed to be turned over but wasn't.   We don't get the actual info, the whistle blowing is over private military companies doing stuff then refusing to admit it after being ordered by Congress, who happens to control their pipeline of funding.  

In the end, it is all about money and power and control.  Those in power do not want any average joe to have this tech any more than they'd be comfortable with somebody building a Thorium reactor in their garage.  Not because it's dangerous (See light element reactors for details of safe and meltdown proof systems that nobody is building), but because they can't be controlled.

From nearly all reports, you don't get to do anything when real close or at interaction distance.  They're somehow able to manipulate emotions and some even say blank out time, where a 20 minute tip took them 4 hours and they thought they saw something odd but didn't think of it again.  No direct memory of it just several stories along those lines.   The detailed accounts are almost all from people that were hypnotized to try and find repressed memories, after which they remember more but some may be embellished.

Several cases of people seeing a craft close up and not taking a photo because it didn't cross their mind.  Even though they were carrying a camera for the exact purpose of getting pictures of something they saw and drove to.   Even police officers pre body cam era went to a report site and they remember seeing it up close and detailed, the giant triangle one over IN/IL area in 90s IIRC, and taking a photo or shooting or anything never popped into his mind.  Sort of just transfixed.

The kids in South Africa or Australia that saw them up close sort of sent information telepathically, like "don't be afraid" and the like when the kids go to where they could see it.  Not speaking words into their head, but more sending feelings and it was like an idea popped into their head which was calming.

Could all be just trasnfixtion on something so.. alien, that they forget anything they were doing.  Sort of like when you look up and see some super hot girl in a  skimpy swimsuit at the beach.  You kind of forget what you're doing and spill your drink on yourself after losing 10 seconds of time (though memories of  hot chick never leaves your mind in that case).

Anyway, no reports of anybody taking a pot shot at any craft and hitting or missing.  Maybe that is how they find people to probe?  

Yes.   Lots of amateurs out looking for asteroids and comets not in database with their orbital parameters with backyard observatories and wide angle lenses pointed at Zenith (straight up), though with the 175° view, resolution in any particular area is lacking, but that is still improving as well and computer control could move a second camera toward an object of interest and get video or stills of it holding object steady while tracking instead of animating still shots.

Not sure if the record lit objects or notice stars that blink out and back on while something truly dark passes over.

With @Cypher214 going, he's doing similar manually with night vision and an in-path video recorder to capture what he sees in the goggles as HD Video.  Haven't heard of any recent sightings but he has seen several oddities that aren't on adsbexchange.com and lights moving in orbits or predicted paths but not matching the public ADSB radar return so they are unidentified craft, just hard to get high resolution due to narrow view angle of night vision with any resolution so his videos are a bit speculative, but have far more info and examples than the others doing the same thing (basically nobody to a handful) can compare with what they see in the night sky with goggles.  Article on equipment and processing for amateur hunters for an idea of what is being done, though it's really NOT an affordable hobby, so not widespread)

The Astrophotography software available can erase streaks of aircraft going over, I'm not sure if that can be inverted to only show streaks of aircraft with out an ADSB signature (FAA Flight plan and public transponder on board and operational).  

Hard to get real pre-filtered radar data, since so much filtering is done to erase planes, birds and all sorts of other objects with velocities under 80mph or so, but re-filter looking for weak return slow moving would be interesting, that's just a ton of processing to do (FAR faster now with computer power following Moore's law).  The Level 2 and Level 3 data available is already the closest they release for weather on true radar returns to see inside tornadoes and the like.  No planes or faster moving objects included, but it would b neat to see their pre-filtered data with various image processing applied.

Most of America got a wake up when they did just that and the infamous 4 balloons were found via weak return and hard surface (radar return energy and polarization as well as phase compared to outgoing signal can tell a lot about surface types)

Hopefully we'll see some more declassified, though when they say "Not Good", I am not sure if they are referring to the hiding of information as "not good" or if the details of what was withheld is "not good".  If the latter, it might be why we have been hinted at not wanting too much info too quickly and enjoy the bits while they trickle out instead.

Make sure you have a shot camera on rifle that uploads all shots to the cloud as well as SD Card so  your life isn't wasted for nothing.  You'd be wishing for that while they really get into the .. probing.