OSHA = Occupational Safety and Health Administration
USDA = United States Department of Agriculture
NIOSH = National Institutes for Occupational Safety and Health
and while the government can only do so much to prevent natural disasters (effective measures to combat global warming would be a great start! and something only governments can do in a meaningful way), I'm sure the emergency response services that FEMA, etc provide have made quite a big difference to those who benefitted from them.
As for corruption, well, that's a little hard to combat when, instead of having politicians influenced by vile oligarchs, we just cut out the middle man and vote in a vile oligarch as president. Maybe in 2020...
With STDs that is no agency going to kick that without input into education of children and parents but they are only going to listen if there is reliable information to base it on. These agencies work to make sure what we know about diseases and how to prevent and treat them is accurate and up to date.
Probably the ONLY advantage to living here, but I digress.
How adding yet another three letter agency on top of everything is supposed to help, I have no clue.
Any time there is a crisis, politicians want to "do something" which then just creates more cruft and inefficiency. These agencies are frequently created but as far as I know never go away.