Bloomberg is taking a shot at the New York Stock Exchange (again)

Bloomberg is taking a shot at the New York Stock Exchange. Again. 
The financial data giant just filed a letter with the Securities and Exchange Commission, complaining about changes to the fee schedule for some trading data from America's biggest stock exchange. 
There has been a long-running battle in the stock trading community over the cost of market data. At one point in February, this debate descended into Games of Thrones references. 
This latest episode relates to the cost