CNN) – Janet Napolitano just started her first Washington job — but speculation lingers over whether she might be interested in a more permanent post in the nation's capital. The Homeland Security secretary continued to shrug off questions Sunday over whether or not she'd be willing to serve on the Supreme Court if she were tapped by President Obama to fill the vacancy left by the retirement of Justice David Souter."You know Chris, I got to tell you, I got my hands full with the flu right now and I’m just going to stick with that," she told Fox News...