again: they're very openly interfering, and if they take over they're going to be a us puppet government. whatever the problems with the existing government, setting up a puppet state is no solution.
however, this report doesn't do a good job of separating between the protesters and the opposition. the opposition usually has little real control over protestors in the initial stages of the uprising. it takes time for them to take over.
http://www.democracynow.org/2014/2/20/venezuelan_protests_another_attempt_by_us