A few points<p><a href="http:&#x2F;&#x2F;www.nature.com&#x2F;news&#x2F;caution-urged-over-editing-dna-in-wildlife-intentionally-or-not-1.18123" rel="nofollow">http:&#x2F;&#x2F;www.nature.com&#x2F;news&#x2F;caution-urged-over-editing-dna-in...</a><p><a href="http:&#x2F;&#x2F;arstechnica.com&#x2F;science&#x2F;2015&#x2F;03&#x2F;new-dna-construct-can-set-off-a-mutagenic-chain-reaction&#x2F;" rel="nofollow">http:&#x2F;&#x2F;arstechnica.com&#x2F;science&#x2F;2015&#x2F;03&#x2F;new-dna-construct-can...</a><p><a href="http:&#x2F;&#x2F;arxiv.org&#x2F;pdf&#x2F;1410.5787.pdf" rel="nofollow">http:&#x2F;&#x2F;arxiv.org&#x2F;pdf&#x2F;1410.5787.pdf</a><p>You release not only a gene but a technology into the wild. This is something that can not be undone. You may easily underestimate the scale, rapidness and evolutionary pressure of a fast replicating species. Throw a few atomic bombs on Brazil. The effects are<p>a) temporary<p>b) geographically limited.<p>If something screws up with the CRISPR&#x2F;Cas9 system, the effects are<p>a) not temporary<p>b) geographically unlimited.<p>Proceed with caution.