"No es no", the protest movement to keep Chavez from changing the constitution for another period of presidency unfortunatly failed in 2008.
I was impressed with the demonstrators I joined in Caracas then. 1 mio people on the street, many of them former Chavistas. Our friends guarded us well and there were clear rules: if they told us to do something, we would not ask. It was potentially dangerous, but nothing happened.
In Venezuela, things got worse ever since.
Venezuela could be a Latin Switzerland. A beautiful country with great people and all the fortunes, nature can come up with. Yet...
The other day, a friend had a skype call with some other mutual friend in Caracas. "Hang on", she said casually, interrupting the conversation, "I have to close the windows. The tear gas is coming in."