caustic chemical, and as you can see in this picture, the green stuff got inside his eyeball. navalny started losing sight in that eye after the second attack. he needed to surgery to save his eye from a specialist in spain. since he picked up that mantel as russia's most effective opposition leader, alexei navalny has been threatened, arrested, jailed. he's been dyed green twice. he's been almost blinded. and of course he was ultimately quite seriously poisoned. he was poisoned with the russian made novichok last year. it almost killed him. put him in a coma, almost killed him. he recovered in germany, and then against the advice of everybody who loves him, he said he'd return to russia. he did. he returned to russia this year. he was immediately arrested and almost just as immediately,