Employees of Deutsche, HSBC, Societe Generale said to be under investigation.

Employees of Deutsche, HSBC, Societe Generale said to be under investigation.

Investigation of interest-rate manipulation has touched up to 18 financial institutions.

Investigation of interest-rate manipulation has touched up to 18 financial institutions.

Washington office is now litigating 90 cases, up more than 50% from year ago.

Washington office is now litigating 90 cases, up more than 50% from year ago.

Traders may have been able to manipulate global interest rates.

Traders may have been able to manipulate global interest rates.