Ladies and gentlemen, this is Joe Biden, I&#39m filling in for President Obama, while he addresses the NATO summit in Wales.女士们、先生们，我是拜登，奥巴马总统在威尔士的北约峰会上讲话时我来替他进行本周的演讲。When the President and I took office in January of 2009, this nation was in the midst of the greatest economic crisis since the great