Maybe it's just that I am a sloppy reader, but I don't remember Lara ever mentioning to anyone on Earth (especially to Clark) that if she and Jor-El had kept him on Krypton, the Kryptonian society would have killed him!

The whole story pivots around the knowledge that, far from sending him away to casually discard him, it was actually done to save his life!

If I indeed missed this revelation, could someone point me to the part where it was mentioned?

Thanks,
Snave