Flickr v YouTube : Crisis Response

Just reading a post from the Flickr blog about photos people have been posting about the Minneapolis bridge collapse. Once again I was fascinated by the perspective on news events that we get from the Flickr community. The world news services invariable present a very narrow and predictable window onto events. But Flickr allows a wide range of individuals to share these moments from their perspective.

One question that came to mind as I browsed the Flickr images relates to how video sharing services respond to these events. To test this I used the same search terms on YouTube as had been used in Flickr. The contrast was amazing. There were no personal videos of the event on YouTube (except for headshot of some guy talking about how he heard about it). Every video was taken from the news. Why is this? Does it tell us something about the communities that use Flickr compared to YouTube? Does it tell us something about the quite different relationship with have to photographs as compared to video? Is it really just a reflection on the availablity of still cameras compared to video cameras. My guess is that it's a combination of all of these (and no doubt a few I haven't considered). What are your thoughts?