10/06/2011
"We have the technology to capture into Earth orbit any medium to small asteroid that passes sufficiently close to the Earth at a relatively low velocity, as Apophis will do on Friday, April 13th, 2029.
We can spend a few billion, and yield a resource worth perhaps a trillion dollars: 25 million TONS of oxygen, iron, silicon, aluminum, water, carbon, and other ores, conveniently located in Earth orbit. Resources which can be used to create solar power satellites without having to boost all that mass from the surface of the Earth. Resources that can be used to lower the cost of space exploration ten-fold. Resources that can be used to build permanent self-sustaining habitats in space..."