Fifteen years later, in 2000, Olivera played a key role in a resistance movement that stopped the privatization of water in Cochabamba, Bolivia. 
Miaka kumi na mitano baadae, mwaka 2000, Olivera alihusika kwa kiasi kikubwa katika vuguvugu la upinzani lililomaliza jaribio la ubinafsishaji wa maji mjini Cochabamba, Bolivia.