BUFFETT: This is the 'time bomb' in the markets

Derivatives have Warren Buffett worried.
At Berkshire Hathaway's annual meeting Saturday, Buffet and his partner Charlie Munger fielded a question on the use of derivatives by US banks.
"It's still a potential time bomb if you were to get a discontinuity," said Buffett.
Derivatives are financial tools that base their performance on a underlying asset. These can include things such as mortgage backed securities that track a bundle of home loans and helped cause the 2008 financial crisis.
Buffett