He said, she said... who's telling the truth?&nbsp; According to the San Franciscos Chronicle editor, the White House communications staff threatened to ban one of the Chronicle's reporters from future presidential visits because she shot video of a protest outside an Obama fund-raising event.&nbsp; But, when questioned about the threat, the White House denied it.&nbsp; What gives?&nbsp; Read the full story at:&nbsp; <a href="http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2011/04/30/EDIF1J9TNO.DTL">www.sfgate.com/cgi-bin/article.cgi</a><br />