system
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human
[Men In Black] How come access to the file relating to Kay's encounter with Boris in 1969 was restricted?

Spoilering this just in case.

So Men in Black 3 has 3 timelines.  Original, where Kay arrests Boris and gets the Arcnet up into space in 1969 and arrests Boris.  Then there's the altered timeline where present-Boris goes back in time and helps his past-self kill Kay in 1969 and prevents the arcnet from being used, which leads to a present-day invasion.  Then there's the mostly-fixed timeline that happens because Jay goes back in time and prevents Boris from killing Kay, and the arcnet goes up into space.  The major differences between the original and mostly-fixed timelines are that Jay and an extra Boris were present, and Boris is dead rather than arrested; likewise, there's now the possibility of Kay eventually recognizing young James as being the agent from the future as he grows up, since in both "Kay survives" timelines, he keeps an eye on the kid because his father died saving his life.

Now, in the original timeline (the one that exists without any influence from time travel), everyone is very sensitive about what happened in 1969.  Kay suspends Jay for an entire month for asking about it twice, and O restricts Jay's security privileges so that he can't access the files.  I understand that nobody wants to be the one to tell Jay *"oh by the way your dad died protecting your partner and you super got flashy-thing'd in the process, sorry I guess"*, but the lengths they go to to keep it from him, and just how upset they seem about that day in 1969 feels more like there's a secret they're trying to keep from everyone, not just him.  It confused me; it felt very *"this is a state secret, you CAN NOT find out"* and less *"we feel awkward for keeping it from you after all this time and don't want to tell you your dad died protecting a MIB agent"*.  It feels very hyped up, and made for good trailer material.

It was secretive enough that at first I thought that the people in the original non-time-travel timeline somehow knew that time travel was about to occur, and they REALLY didn't want him to find out details about what he would do in the past because paradoxes.  But that doesn't make sense because no time travel happened in that timeline.

Am I overthinking this?  Is it really as simple as *"nobody wants to tell Jay that oopsie-poopsie, your trusted partner is sorta kinda responsible for your dad dying and he never ever told you, so we're just going to suspend him when he asks and restrict his security access so that he doesn't find out and make us all feel awkward"*?
gpt
Time travel is apparently illegal in the MIB universe plus it's about the planetary defense systems. Both of those are *super* important to keep secret, so keeping those files as restricted as possible is good security. You wouldn't want an alien to pose as an MIB agent and know where they keep the time machines/time machine inventors *and* know where the arcnet comes from (or at least what species so you could devise weaknesses) as a nice bonus.