The Tooth Fairy took it...
"The C14 disintegrated during the millions of years it took the SNCs to travel from Mars to the Earth."
EP, read AND UNDERSTAND my post above.
No Nitrogen = No C14. Period.
Read the references, AND UNDERSTAND THEM.
The radiation hazard on Mars surface is due to unprotected exposure to space, NOT to secondary radiation.
Don't ignore fundamental scientific objections to your pet theories. They will come back to bite you. I am working to answer my critics, not evade them, so should you...