Please read this fascinating article from CBC's Matthew Pace.
Inside our computers, and our cellular phones and pagers, is a metallic ore called coltan. It's hard, resistant to corrosion, and a good conductor of heat and electricity. Coltan is mined in only a few places in the world. The eastern Congo is one of them.
Coltan can be mined with just a shovel. So, during the technology boom a few years back, thousands of Congolese who lived nearby rushed into the park to mine the ore illegally. They had little to eat, until they started shooting the gorillas....