Games for Change is poised to bring about a new brand of morally responsible video games.
Identifying the location of pedestrian and cyclist injuries is a key first step for cities to reduce the occurrence.
Politwoops and more than 30 similar services around the world will once again be able to operate.
"We've come an impossibly long way," says the mayor.
More cities will receive grants to solve pressing local problems.
A new contest offers $50 million to the city with the best plan.
The lesson for cities struggling to harness the power of data: Start with the problem.