National Geographic historical mission is "to increase and diffuse geographic knowledge while promoting the conservation of the world's cultural, historical, and natural resources." As one of the leading distributors of content on these subjects, it is a scientific charity whose products are distributed to over 360 million people monthly according to wikipedia. The organisations headquarters are in Washington DC where the National Geographic Museum is also housed. Like much media and pedagogic information distributed within these subject areas, the materials they produce are highly articulated research and often strikingly beautiful imagery integrated into one package. The effect allows the user to enjoy a range of incredible events, social and environmental phenomena, if from a safe distance, whilst giving many insights into knowledge of the world that they may not otherwise have any access to. National Geographic has substantially covered the events of last year in Japan, with programs, features and articles on both the Tsunami and the radiation that is spreading away from Fukushima across the oceans.
One example of their insightful coverage and its potential effects in the US based on recent work by the US based Natural Resources Defence Council can be found here: