CNN once again shows how easy it is to confuse a Democratic senator and a terrorist.

"Where's Obama?" they asked, over a graphic of Osama bin Laden. And Wolf Blitzer apologizes.

For those CNN-watchers keeping score at home, that's two comparison of likely presidential hopeful Sen. Barack Obama's (D-IL) name to Saddam Hussein's, one to Mahmoud Ahmadinejad, and now three to Osama bin Laden's name.