WASHINGTON - David Margolis, a lawyer at the Justice Department for 40 years, was named Friday to oversee a special prosecutor's investigation of who in the Bush administration disclosed the name of an undercover CIA officer. Margolis, whose title is associate deputy attorney general, is taking the place of Deputy Attorney General James Comey, whose last day of work was Friday. Comey will be Lockheed Martin's new general counsel. Comey made the designation of Margolis. Attorney General Alberto Gonzales has stepped aside from the probe because he was White House counsel when Valerie Plame's name was leaked in 2003 and...