The federal government has recently been trying to get hold of knockout mice.

Knockout mice are a dangerous new weapon, all the more frightening because if they somehow get loose among the population, they will knock out ordinary US citizens and the terrorists will go untouched.

Knockout mice have had a gene knocked out, and possibly another one inserted instead. Still interesting, and still controversial, but in a different way.

This reminds me of the mouse with the human-like ear growing on its back. (Even though it’s not a knockout mouse and wasn’t genetically engineered.) When will those be available to consumers? I’d like one for my birthday.

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