The Environmental Protection Agency has reauthorized the use of “cyanide bombs” to control pest populations and protect livestock.

M-44 devices, commonly called cyanide bombs, are used mostly by farmers and ranchers to kill coyotes, feral dogs, and foxes that are threatening livestock. Environmental groups have recently mounted a campaign to ban the tool after a 2018 accident in which a M-44 killed a family’s dog and blinded a teen.