JPMorgan's $20 bln AT&T loan a "credit negative"-Moody's

JPMorgan Chase & Co's (JPM.N) decision to be the sole underwriter on a $20 billion bridge loan to AT&T Inc (T.N) is a "credit negative," according to Moody's Investors Service. JPMorgan is the only bank... NEW YORK, March 28 JPMorgan is the only...