truth sleuth 

noun--a free thinker. A person resistant to brainwashing by corporate and political propaganda.

Jon Stewart is a truth sleuth because he analyzes multiple reliable sources of conflicting information before drawing a conclusion, but does he recognize his own liberal bias?

truth sleuth by Professor Independence July 24, 2014

truth sleuthing 

Verb--checking a variety of reliable sources before drawing a conclusion about a topic, especially when faced with corporate or political propaganda

Jon Stewart is truth sleuthing when he examines conservative and liberal media coverage of a particular event, although his own coverage tends to lean to the left.

truth sleuthing by Professor Independence July 27, 2014