Ratings agency says second downgrade reflects nations debt burden.

Worst credit market sell-off since 2010 suggests long bull market may be ending.

Worst credit market sell-off since 2010 suggests long bull market may be ending.

Rating agency expected to issue negative outlook on all 17 countries.

Rating agency expected to issue negative outlook on all 17 countries.

Supercommittees failure raises probability of a downgrade, rating agency says.

President Sharma to leave in wake of controversial U.S. ratings cut.

President Sharma to leave in wake of controversial U.S. ratings cut.