Doesn’t the space shuttle use ammonium perchlorate in the solid rocket boosters. Other launch vehicles probably do as well.
Its also used in fireworks, amateur rockets, and pryotechnics.
Chromium 6 was also THE big poison in drinking water too, wasn’t it?
There always will be some “new” toxin for the enviro-extremists and regulators to make into a “sky is falling” threat. For enviros, it means a way to make money with horror stories (most often greatly exaggerated) coupled with a request for donations to “fight” the threat. For the regulators, it’s one more way to gain control of individual lives and punish “evil corporations” who pollute the environment.
A recent example in drinking water is arsenic which had the regulatory level lowered, not as a poison, but for supposed cancer causing effects. However, the lowering caused many groundwater treatment plants here in NM to become obsolete as they were not designed to take out this constituent and required taxpayers to pick up the tab for treating a substance they had been drinking naturally for years with no adverse effects.
Just remember the biggest lie is “I’m from the government and I’m here to help you” as Obama gears up for massive new, expensive programs with more bureaucrats. I wonder how many new buildings to house these people will be built as part of his infrastructure program?