First,I don’t trust Newsweak. The McCain camp isn’t doing this directly, and you can be sure the democrat leading this investigation is on a mission to cause trouble for Palin.
Newsweek is owned by the viruletly anti-semitic Washington Post. As we all recall they campaigned against Senator George Allen two years ago with such information as the fact his mother was Jewish during WWII.
Of course, which is why it is nearly impossible to have a fair investigation into any issue that has political overtones.