The federal government has recently been trying to get hold of knockout mice.
Either:
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.
Or:
Knockout mice have had a gene knocked out, and possibly another one inserted instead. Still interesting, and still controversial, but in a different way.
And:
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.