What makes us different from one another

One of my favorite newspapers in Mexico is La Jornada.

I found today’s front-page picture quite interesting. Personally because I’ve always struggled with the idea that people in wars, conflicts, or simply different political parties, in the end are simply people; with blood in their veins and the same number of bones. We may have different skin tones and eye color, but we are all made equal. Therefore, when there are two sides fighting over ‘something’ no matter what that is, the only thing that makes us different is what we believe in; our thoughts. And those could be so radically different from one head to another they can depict images like the one in today’s front page.

It is about Cairo and the conflicts against a military government.

http://www.jornada.unam.mx/2011/11/22/portada.pdf

The footnote reads something like this (I will try to translate to my best ability):

A police officer dressed as a civilian throws stones against protesters after the continuous confrontation near Tahrir Square, in Cairo. The violence chain begun Saturday morning, when dozens of activists were arrested and hit for spending the night in that same square.

How could anyone know this guy is a police officer dressed as a civilian if it wasn’t because the reporter, or cameraman, clearly stated so? He could have passed by another protester, but he was throwing stones from the ‘opposite’ side. The story never explains how they found out he was a police officer in his regular clothes, which leads me again to think, we are all the same just wearing different ‘uniforms.’