http://videogames.yahoo.com/feature/playstation-2-component-incites-african-war/1231745In part:
At the center of the conflict is the unrefined metallic ore, coltan. After processing, coltan turns into a powder called tantalum, which is used extensively in a wealth of western electronic devices including cell phones, computers and, of course, game consoles.
Allegedly, the demand for coltan prompted Rwandan military groups and western mining companies to plunder hundreds of millions of dollars worth of the rare metal, often by forcing prisoners-of-war and even children to work in the country's coltan mines.
"Kids in Congo were being sent down mines to die so that kids in Europe and America could kill imaginary aliens in their living rooms," said Ex-British Parliament Member Oona King.
So where's the connection to Sony? According to Toward Freedom, during the 2000 launch of the PS2, the electronics giant was having trouble meeting consumer demand. To pump out more units, Sony required a significant increase in the production of electric capacitors, which are primarily made with tantalum. This helped drive the world price of the powder from $49/pound to a whopping $275/pound, resulting in the frenzied scouring of the Congolese hills known for being ripe with coltan.