What's Donald Trump Hiding?

The Clinton campaign (briefing.hillaryclinton.com) released a video that implies that there's something in his tax returns that voters would actually care about.

I love that the video is marked "unlisted".

I know she doesn't understand technology (two email addresses are too complicated), but doesn't anyone on her staff see that having a video unlisted isn't the best way to get it to go viral? Do they not want it viewed?

They also have the comments disabled. At least they're smart there. Otherwise it would be a page of "Release your transcripts!" comments.