STANDARD AND POORMore on S&P’s possible downgrading of the US credit ratinghttp://mydd.com/2011/4/19/the-sp-downgrhttp://motherjones.com/kevin-drum/2011/04/whos-afraid-standard-poorshttp://www.americablog.com/2011/04/analysts-dismiss-s-criticism-of-us.htmlhttp://news.firedoglake.com/2011/04/19/proper-reaction-to-sp-credit-downgrade-threat-bursting-out-laughing/http://crooksandliars.com/karoli/