Reuters - The biggest U.S. insider trading case in decades was expected to head into opening statements on Wednesday in a court showdown between prosecutors and lawyers for Galleon hedge fund founder Raj Rajaratnam.<p><strong>Read more:</strong> <a class="rssreadon" rel="external" title="Rajaratnam trial heads to opening statements   (Reuters)" href="http://us.rd.yahoo.com/dailynews/rss/business/*http%3A//news.yahoo.com/s/nm/20110308/bs_nm/us_galleon_rajaratnam" target="_blank">http://us.rd.yahoo.com/dailynews/rss/business/*http%3A//news.yahoo.com/s/nm/20110308/bs_nm/us_galleon_rajaratnam</a></p>