BBC NEWS | Business | Buffett warns on investment 'time bomb'

http://news.bbc.co.uk/2/hi/2817995.stm

investment 'time bomb' Derivatives are financial weapons of mass destruction Warren Buffett The rapidly growing trade in derivatives poses a "mega-catastrophic risk" for the econo
Legendary investor Warren Buffett says shares are still too expensive, while derivatives could turn into a "mega catastrophe" for investors.

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