Wildlife services are a sub division of U.S. Fish and Wildlife Service, there official purpose according to archived pages, because their actual web page ad face book pages are currently "off line" owing to "app outages" is to clear away plastic waste materials from coastal waters and national parks.
During the 2019 government closure they campaigned especially hard to be allowed to reopen and do their vital work, which it now seems was to supervise their authorized but secret campaigning of gas warfare on the American people and fauna.
The Jonestown Massacre in 1978 used this same chemical as their preferred method of suicide/murder