How much is a Second Class stamp? <a href=" http://www.buscadichos.com/oedipus-thesis#dismiss ">discursive essay topics higher</a> A surge in letters of credit also ebbed this year. Someissuers turned to the letters to replace bond insurance, andmany had used them to move their debt from auction-ratesecurities to variable-rate when the market for auction-ratesfroze in 2009.