Here's a fascinating talk by Sharyl Attkisson, the journalist who uncovered the Fast and Furious ATF scandal. It's particularly relevant in the current election cycle, where special interests are trying to persuade us that their candidate or party or point of view is worth our vote. Highly recommended viewing.
Ms. Attkisson's mainstream media career was derailed by political pressure on her employer, CBS, but she appears to be doing just fine on her own. Kudos to her.