Mass transit moves billions of people every day, hundreds of millions in the USA alone. These platforms are near defenseless, and are severely lacking ability to detect and report conditions on-board. This makes them soft targets for terrorists, and at minimum, much more prone to casualties.
Commercial aviation, cruise lines with 4,000+ people on-board, railways, and school buses that move 24 million children each school day.
Incredibly, these various transportation platforms can all connect to each other via amorphous ad-hoc wireless mesh network, detecting and reporting conditions back to pre-determined first-responders in real-time, when it matters.
Prevention. Detection. Mitigation.
Finally, intelligent mass transit is here.