FILE - In this Jan. 28, 2019 file photo, firefighters prepare a body to be lifted away by a helicopter, after pulling the dead person from the mud days after a dam collapse in Brumadinho, Brazil. The Minas Gerais state government said in a statement Wednesday, Feb. 20, that blood and urine tests conducted on firefighters searching through muddy mine waste for missing people after a dam collapse show high levels of potentially toxic metals. (AP Photo/Leo Correa, File)
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