1) The sight of the two cops obviously straining, really getting into their "work" against an apparently hapless protester. Isn't it reassuring, in a time when so many employees supposedly don’t care about their work, to see two "workers" so serious about doing their job "right"?! (Or should I say "right-wing", instead of "right"?)
2) The large letters on the jacket of the "white-shirt" officer to the right that identify him as "police". This gets to the point I've raised previously (via comment to a story at the NYT, at the Sardonicky blog, and at RealityChex): I believe that all law enforcement and military should wear a large (at least 10 cm tall) identifying number on their uniform, to permit identification at a distance by witnesses and/or photography, of those in positions of authority who abuse their power. As in most jurisdictions, the New York City police have no problem wearing jackets with large letters that identify them as police — but when it comes to specific identification of a particular officer, that will be extremely small (if at all), and certainly not readable at a distance.
The photographer, Spencer Platt, has done a masterful job of capturing these essentials.