Katie Couric's Notebook: YouTube

Hi everyone.

From Republican presidential contender Rudy Giuliani saying in 1989 that he supports public funding for abortion...to Democratic hopeful John Edwards spending an eternity styling his hair, the videos on YouTube are embarrassing the candidates -- and changing American politics.

But is it a change for the better?

Now, EVERY move from EVERY candidate is subject to scrutiny...and no mistake goes unpunished.

"The campaigns are no longer in control," says veteran political strategist Simon Rosenberg, and voters have the power not just to donate money, but to broadcast opposition research, and create their own negative advertising.

But voters also have a responsibility to judge these candidates fairly. To decide whether a candidate's position has changed for political reasons--or principled ones. To distinguish between unacceptable behavior...and acknowledging that everyone makes mistakes.

That's a page from my notebook.