Use the piggy back method

Example Zuckerberg hearing

Open all hated news sources at the time his testimony begins.

Every time they tweet about Zuck, drop the link to @Snowdens tweet with 2009 Videos.

No hashtag, no smart ass comments.

Just leave the video and wait.

Do not respond to them, let them absorb the information.

You'll be surprised who's hearts your video link. Just keep your mouth shut.