Something is clearly amiss. Maybe it's a big deal and maybe it's not. But as politics go, the party not currently occupying the White House always makes a big show of it all.
First, if Congress finds her in contempt, it's up the AG to proscecute. Holder isn't going to touch it with a 10 foot pole. Second, if she gets immunity, she then takes the blame for everything and it goes no further. You're smarter than this, Denny.
Immunity doesn't allow her to lie. She can still be charged with perjury. It does mean what she testifies to that is truthful can't be used against her. She's not testifying. I'm smart enough to figure out why.
And if she takes the blame, how would we know she's not lying? Is someone above her going to raise their hand and say, "I did it."? The people in the administration above her and Democrats have both a bigger carrot and a bigger stick than do those investigating her.
