It can be useful to keep tabs on how government money is spent in ways that could impact our rights.
However some things to keep in mind:
1) Groups like the CDC and WHO and NIH study all sorts of factors that contribute to the health of populations. They'll study things like seat-belt use, bike helmet use, trans fats, sugar consumption, radiation exposure, etc., etc. None of which have anything to do with biological epidemics. Guns are a consumer product used and misused in our society. It isn't necessarily in any way nefarious that they would study gun use, safety, storage, ownership rates, etc. as their job is to describe and advise on what things are involved in the health and deaths of our citizens.
2) STOP HIDING FROM NUMBERS. We just had a long thread on mass shooters that I feel illustrated this very well. Statistics, taken as a scientific function, are simply the record of history. This is what happened. While there are always nits to pick, and statistics can be purposefully misused to send an incorrect message, they are simply the numeric truth of what we as a people experience in the real world.
2a) The numbers appear to be on OUR side! Rates of violent crime have fallen off -- right along side large increases in the numbers of guns out in the nation. Rates of accidental shootings continue to fall significantly -- we're doing better and better with that all the time. Rates of crime among concealed carry license holders appear to be so low we should be SHOUTING about this. Hiding from the numbers seems just daft because the numbers will actually support our case!
2b) Trying to prevent health organizations from studying something makes us look like shady, backward, stupid, fearful, GUILTY hicks who are trying to protect something they know to be a social evil. We DON'T have something to hide, nor something to hide FROM. Friggin' quit acting like we do!
2c) Solid numbers can tell us things WE need to know. Education is always a benefit. If we have problems we need to fix, we should WANT to hear about them so we can be better. How can we be the positive influence in society that we claim to be if we refuse to look at where we might be able to do better?
2d) The 2nd Amendment doesn't rely on statistics for its strength or its supremacy as a founding principle of our nation. Even if the numbers DID say bad things about gun owners' safety or "gun crime" we do not hold our right hostage to current statistics. And it would do us well to stand a little firmer on the "freedom isn't free" argument.