This should indeed be easy, and given how good it is at translation, very interesting - taking too news sources and national broadcast services; rate as you do now - filter the top, summarize in English, store and dedup on similarity vector - it would be great. For example i don't read any Chinese or African news sources - but it would be great to have them in the mix.
Might even index on similarity first then ask for a summary on all different reports on the same story?