Stocks and bond yields sink as growth fears set in

By Patrick Graham LONDON (Reuters) - Fear of instability in the European Union and of decades of global stagnation sent stock markets sharply lower on Wednesday as Britain's pound sank below $1.30 for the first time in more than three decades. After a steadier few days as investors digest the shock of Britain's decision to leave the European Union, the implications of another round of financial losses, interest rate cuts and central bank money-printing to prop up growth have begun to set in. Eur