They want to kill us

The psychopathy and dishonesty of the current U.S. administration is beneath the deepest depths of evil. This proposed EPA rule change in the nature of scientific data that can be used to inform the rulemaking process is a case of mass murder by sophistry.

Supposedly it's to improve "transparency." Basically, if scientists don't make all of the raw data underlying their conclusions publicly available, the studies can't be considered. What this really means is that fully established, indisputable scientific truths will be ruled not true. That includes pretty basic stuff, such as, you know, the association of air pollution with premature death.

The reason scientists don't always make all of their underlying data publicly available is because it includes personal information about the individuals in the study. When people consent to be human research subjects, in most circumstances ethical rules require that subjects' identifies remain confidential, and there are very strong protections in place to assure this. These rules are in fact federal regulations that all scientists who work for agencies such as, for instance, universities that receive federal funding must follow. The data sets, to be useful, must include all sorts of personal information such as birth dates, death dates, comorbid diseases, body mass index, and, in the case of air pollution studies, their home addresses and where they work. That means that individuals could be identified and therefore the data has to remain confidential.

It would be impossible to do most meaningful environmental health studies following these proposed rules. Ergo, Donald J. Trump and his EPA want to kill you.

Let's see what the Union of Concerned Scientists has to say about this:

Let’s call this what it is: an excuse to abandon clean air, clean water, and chemical safety rules. This new restriction on science would upend the way we protect communities from pollution and other health threats.
The proposal is even worse than I expected. It doesn’t just restrict the science that EPA can use to institute new rules—it works retroactively, allowing political appointees at the agency to topple standards that have worked for decades to deliver clean air and clean water. There’s no scientific reason or public interest to restricting the science that EPA can consider in this way—it will just make the laws that protect public health and the environment nearly impossible to carry out.
Administrator Wheeler’s claims about the need for these restrictions don’t pass the laugh test. Everything about this rule makes a mockery of the EPA’s claim that this change is necessary for transparency. This rule was driven by political operatives. It’s being rushed through with minimal opportunity for public comment. And it introduces pointless hurdles and delays into the policymaking process that will compromise the federal government’s ability to protect the public.
This is a blatant removal of well-established science from the policymaking process, to the benefit of polluters and at a huge cost to the marginalized communities who face the biggest threat from pollution.
The Trump administration has a clear pattern of sidelining science and undermining public health protections. If this rule is finalized, it would be one of the most damaging and far-reaching policy changes enacted by the administration. It would put the entire enterprise of developing science-based public health safeguards at risk.
The EPA has one job—to protect public health and the environment, based on the best available science. With this proposal, Administrator Wheeler has effectively announced that he’s abandoning that mission.

Let's tell is like it is. They are criminal scum.