You should watch this to learn the facts about the case:
Also:
> "...the new disclosures demonstrate that Mueller’s prosecutors not only pressured Flynn with the possibility of indicting his son; they also secretly assured Flynn’s former counsel... that Flynn’s son would not be prosecuted if Flynn pleaded guilty. "
https://thehill.com/opinion/judiciary/495366-something-seems...
This is also more than a month old and a lot more facts have been released since then. Media simply not reporting them because it doesn't fit the narrative doesn't mean the facts aren't important.