I read they were being investigated for their actions. I don't really know what should happen. I would guess my opinion would change depending on the demeanor of these cadets when faced with the consequences of their actions (much like that happens all the time in public courts) and the supposed intent behind it. I do feel there should be consequences but I don't know quite yet what I feel should be those consequences should be. Even if one can point to immaturity that def. speaks towards their current career path IMO.
In terms of what is being discussed I did find this comment in the article I was reading one I will try to keep in mind when looking at things: "the use of the symbol itself “is not a reliable signifier" on its own that someone is a white supremacist, Mark Pitcavage, a senior research fellow at the ADL’s Center on Extremism, previously said over social media.
And “no one should assume anything about the use of such a gesture unless there are other unmistakable white supremacist signifiers in that context as well." The ADL is an anti-hate organization. The quoted comment in a general comment by the way.