A personal iPhone can be set up to receive company e-mail via a Microsoft Exchange Server. But once it is set up, the phone can receive a variety of commands from the server including a remote wipe, which can destroy all the data and disable the phone. Jeff Chiu/AP hide caption

itoggle caption Jeff Chiu/AP

Maria Dominguez picks Gala apples in an orchard in Wapato, Wash., in 2007. Shannon Dininny/AP hide caption

itoggle caption Shannon Dininny/AP

President Clinton and Democratic gubernatorial candidate and California Attorney General Jerry Brown wave to students at a rally in Los Angeles on Oct. 15. Clinton is as much of an asset to Democratic candidates as President Obama, and in some cases, more so. Kevork Djansezian/Getty Images hide caption

itoggle caption Kevork Djansezian/Getty Images

Republican senatorial candidate Dino Rossi talks to supporters at his campaign office in Everett, Wash., on Tuesday. Rossi is challenging Democratic Sen. Patty Murray for her seat. Ted S. Warren/AP hide caption

itoggle caption Ted S. Warren/AP