Ask HN: App to verify footage of atrocities in Syria, what is needed?

Since the uprising in Syria 2 years ago, in the British press we constantly see graphic video and images of 'unverified footage' purported to be from some place in Syria.

For example: http://www.bbc.co.uk/news/world-middle-east-20691206

Most of this footage will have come from smart phones, the question is two-fold, what would be required to verify this footage? The second is can someone make a smartphone app that will go as far as possible to help verify this footage.

Surely if the GPS position, time and date was embedded into an image or video that sort of thing a body of evidence could be built up to increase pressure on the international community to act? At the same time the app would need to function generically like an Instagram clone so that an oppressive regime cannot use it to track dissidents. But would this do?