CNN is not the left. They barely qualify as a news network. They are an idiot's version of the BBC.
They should stick to reading Twitter feeds and making MH370 infographics.
What you said about the BBC is totally untrue. Its a very good news network.
What happened in this instance (as explained in the OP link) is an example of the CNN not being a lefty network - when its employee thought that playing a snippet of the national anthem (vs the full version) would be against regulations. But why has nearly everyone in thread think that that mistake was an example of being 'communist'?

