Turns out there's one kind of business regulation the Bush administration is down with: The Department of Agriculture refused yesterday to allow a Kansas beef producer to test all of its cattle for mad cow disease, saying such sweeping tests were not scientifically warranted. The producer, Creekstone Farms Premium Beef, wanted to use recently approved rapid tests so it could resume selling its fat-marbled black Angus beef to Japan, which banned American beef after a cow slaughtered in Washington State last December tested positive for mad cow... The department's under secretary for marketing and regulation, Bill Hawks, said in a statement yesterday that the rapid tests, which are used in Japan and Europe, were licensed for surveillance of animal health, while Creekstone's use would have "implied a consumer safety aspect that is not scientifically warranted." God forbid anyone should imply concerns about consumer safety...