Both of these graphics were created for the eight-minute presentation on Real-Time Intelligence that can be viewed by clicking on either graphic (as always, words in Notes).
Twitter is, like most intelligence environments, a very large garbage pit with some potential.
The NYPD now does monitor Twitter and cross-walks anomalous events against Twitter plotted on Trends.
Twitter can also be used to reach a specific individual at a specific time and place, or to harness the dispersed population to observe and report specific conditions or tangible things.