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International Atomic Energy Agency director Mohamed ElBaradei announced he had discovered that Iran was constructing a facility to enrich uranium — a key component of advanced nuclear weapons...
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Overpopulation occurs when the amount of resources is not enough for a population to survive. With the current population being over 6 billion the Earth's natural resources are quickly being used consumed. Natural ecosystems are being destroyed to human expansion and pollution.
http://www.census.gov/ipc/www/world.html
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North Korea test-fires long range ballistic missiles that can reach the US west coast.
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A meteorite wiped out the dinosaurs. This could happen a second time and wipe out all of man kind. The asteroid would only need to be at least 3–10 km (2–6 miles).
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China has fired a missile into space and destroyed an aging weather satellite orbiting 500 miles above the earth.
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