Today: May 13, 2006 at 11:45:55 PDT Rep. Cunningham's Plea Was Only the Start By SETH HETTENA ASSOCIATED PRESS SAN DIEGO (AP) - The political scandal that brought down former U.S. Rep. Randy "Duke" Cunningham didn't end when the Vietnam War hero began serving an eight-year sentence in federal prison for taking millions of dollars in bribes. Since Cunningham, R-San Diego, was sentenced in March, the case has turned into a sprawling federal investigation with all the soap opera elements - money, power and sex. One of Washington, D.C.'s most notorious landmarks - the Watergate Hotel - even has a...