Regarding this image, it is more likely merely a bit of "trick photography" than being photoshopped. Most reporters carry extremely wide angle lenses on their cameras, allowing for close focus head shots of fleeing politicians. Such lenses produce a dynamic composition that is exciting and good for front page coverage. In contrast, longer lenses produce pleasing, but static perspectives more suitable for portraiture.
BUT...another use of short lenses is that you can get close to subjects and make them look REALLY BIG in comparison to the background. We've all seen advertising photography of people holding out cell phones (or ipods, etc), where they have tiny feet, big heads, and a huge cell phone in your face? Same principle. No software required, just a short focus lens set at hyperfocal distance.