Enron Pressured Merrill in Deal -Attorney  HOUSTON (Reuters) - Enron Corp. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=ENRNQ.PK target=/stocks/quickinfo/fullquote"&gt;ENRNQ.PK&lt;/A&gt;, desperate to  meet profit targets, "parked" unwanted power generating barges  at Merrill Lynch in a sham sale designed to be reversed, a  prosecutor said on Tuesday in the first criminal trial of  former executives at the fallen energy company.