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3 total sentences available.
Now that doesn't mean that Smallville or the US in the Smallvilleverse hasn't banned human cloning, it is a TV show after all. Regardless, and something I should've mentioned in my original response, Clark and Lana likely told the sheriff about the little girls in the "incubators."
Source: wiktionary
I'm also assuming that, given the age her mother died at and that she wasn't in the photos, that Lucy Lane, Lois' little sister, doesn't exist in the Smallvilleverse.
Source: wiktionary
In the Smallvilleverse, Kryptonite also gives humans superpowers, so I would imagine it will as closely controlled as U 235 is, as soon as someone reveals to the public what meteor rocks do.
Source: wiktionary
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.