There is ample evidence that information published in the media in different countries is largely complementary and that only the biggest stories are being discussed internationally. This applies to facts (e.g. on disease outbreaks or violent events) and to opinions (e.g. the same subject may be discussed with very different emotions across countries), but there is also a more subtle bias of the media: National media prefer to talk about local issues and about the actions of their politicians, giving their readers an inflated impression of the importance of their own country. Monitoring the media from many countries and aggregating the information found there would allow readers a less biased and more equilibrated view, but how to achieve this aggregation? The speaker will give evidence of such information complementarity from the Europe Media Monitor family of applications (accessible at http://emm.newsbrief.eu/overview.html) and show first steps towards the aggregation of information from highly multilingual news collections.