Postgraduate studies

Honestly, I don't know too much about the postgraduate studies that are relationated with my career. But when I think about it, a few ideas comes to my mind. Since I am studying journalism, I would love to specialize my career into investigation journalism or something like the study of different cultures and societies, specially the ones that are plunged into poverty. And I would really like to learn more about photojournalism.
The reasons why I would like to study investigation journalism are because it's the most interesting subject for me since I don't like the idea of being exposed on TV and I can always keep myself busy studying different cases. It really excites me to delve into various and different cases that could help the community to know the truth about them. It would be my way to contribute to the democracy.
The reason why I would like to study poor countries and societies is because these parts of the world are very left over and we -as humans- are very blind when it comes to other's people suffering. I would love to find a way to help them and to show to the rest of the human beings how to do it too. Besides, poverty is a very difficult and interesting phenom, and is our duty to remove it from the core.
And , finally, the reason why I would like to study photojournalism is to complement the other two subjects. Because, since most of the people are very visual, photojournalism would help me to to depict the reality that I want them to know and understand.
I would love to do these postgraduate studies in the Universidad de Chile, or, if I ever had the chance, in Columbia University. And if I could, I would go to Australia and study there. I would rather have in-person classes. But if, for example, Columbia University offered me to have online clases, I would definitely take it.