In a surprise move on Friday, President Obama asked EPA Administrator Lisa Jackson to delay implementation of a tougher smog standard intended to be issued this summer.&nbsp; What happened?&nbsp; Read all about it at:&nbsp; <a href="http://www.nationaljournal.com/whitehouse/obama-delays-new-smog-standard-20110902">www.nationaljournal.com/whitehouse/obama-delays-new-smog-standard-20110902</a><br />