Why Did Goldman And JPM Get Fed Minutes A Day Early?

QE could end this Summer according to leaked Fed minutes.
Why were FOMC minutes released to a few organizations a day early, and who got the data?  Peter Cook examines what happened and how it damages the Fed's already tattered reputation for transparency and fair play.
Late update on the story...

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List of Banks and Lobbying Firms
Who Got the Fed Minutes Early - WSJ
American Bankers Association
American Council of Life Insurers
Barclays Capital
BB&T
BNP Paribas
Capital One
Carlyle Group
Citigroup
The Clearing House Association
The Cypress Group
Fifth Third Bank
FINRA
Goldman Sachs
The Gray Company
Guggenheim Partners
HSBC
Independent Community Bankers of America
IntercontinentalExchange
J.P. Morgan Chase
King Street
National Association of Realtors
Nomura
PNC
Regions Bank
Rich Feuer Anderson
Roberts Raheb & Gradler
Securities Industry and Financial Markets Association
Standard & Poors
Sullivan & Cromwell
UBS
U.S. Bank
Wells Fargo
Whitmer & Worrall
Williams & Jensen
Government agencies or public-oriented entities:
Austria Federal Ministry of Finance
Bank of Japan
Conference of State Bank Supervisors
Congress (House & Senate)
Consumer Financial Protection Bureau
European Central Bank
Federal Housing Finance Agency
National Credit Union Administration
Treasury Department
White House

UPDATE - Grayson Asks for Investigation into Fed leak