The level of margin debt in relation to the total valuation of the Big Board stays modest.

FORBES: Bernanke's Tea Leaves Read Unintended Consequences

Costs for producing oil from shale are even lower in relation to the total cost of such oil production.

FORBES: U.S. Energy Independence - So Close, Yet So Far

Already, total consumer debt has risen to all-time highs in relation to income.

ECONOMIST: Consumer debt

Requests for remarks were made in relation to 50, 257 test papers - about 3% of the total number marked and 3, 000 more than last year.

BBC: Appeals rise over schools tests