Last Friday, Colombia was paralyzed. Everyone was listening to the radio, or watching the news on TV, waiting for the Constitutional Court's decision on the referendum. Here at Princeton, I spent the entire day sitting in front of my laptop, listening to online radio stations and following the hundreds of tweets on the issue.

While there are hundreds of thousands of publications dedicated to the export of Colombian drugs, very little is known about the country's domestic drug use. This, as you may not know, is significantly lower than in countries like the U.S. or Spain, but the government still needs to take action to reduce Colombia's drug consumption.

The Brazilian movie City of God tells the story of drug gangs ruling the favelas of Rio de Janeiro. It also perfectly demonstrates the reality in Colombia's second largest city Medellin and gives little hope.