To match interview CITI-SEA/By means of Foo Yun Chee BRUSSELS (Reuters) – A gaggle of top European and American banks will likely be fined a report 1.7 billion euros ($2.3 billion) by way of the European Commission for the rigging of interest-price benchmarks, a supply acquainted with the topic informed Reuters on Wednesday. The penalty is the most important yet to be passed right down to banks for rigging the benchmarks used to decide the price of lending, probably the most brazen violations of conduct considered all over the financial crisis. The banks to be fined are Citigroup , Deutsche Bank , Royal Bank of Scotland , JPMorgan , Barclays and Societe Generale , sources have said.