I think we can charitably take it to have an implicit "by the appropriate standard for evaluating risk". That is to say, "Regulators ... feel certain people wil

I think we can charitably take it to have an implicit "by the appropriate standard for evaluating risk". That is to say, "Regulators ... feel certain people will not be put at risk" -> "According to the industry standard(s) for evaluating risk, the new product is no more dangerous than the prevailing situation".