Community groups have consistently failed to improve policing. These advocates are pushing a new way.

Boston had a hard time solving civic problems efficiently and holding its leadership accountable. In response, a team in the Mayor's office was charged with "making Boston better through clever, low-cost hacks" such as a mobile app that allows residents to send government service requests to City Hall.

In the past, Los Angeles was a dangerous city fraught with gang wars. Lately, though, LA has become a safer city due to six changes enforced by the police cracking down on public violence and gangs.

Very few people go to city council meetings. MindMixer, a tech startup company, increased civic participation in states across the U.S. with online platforms for city officials and the community to discuss ideas.

Crimes against LGBT citizens have gone underreported in many U.S. cities. Washington DC’s Gay and Lesbian Liason Unit has employed and trained LGBT officers to represent community members that they protect and serve. After the establishment of the GLLU, the number of reported crimes has increased, demonstrating the comfort and trust that the community has with law enforcement.

In Houston, TX, many individuals with mental illnesses cycled in and out of emergency care while arrested or incarcerated. Houston’s police department has decreased the number of incarcerated who have mental illness by opening a division to mental health called the Chronic Consumer Stabilization Unit. Now Milwaukee seeks to replicate Houston’s results.

Milwaukee County’s mental health system put more resources in expensive emergency care rather than invest in programs that offer continual care. As a result, Milwaukee County identifies nine solutions from other cities that have had success in repairing mental health systems. Solutions include the ending of reliance on emergency care, expand community support programs, change laws, and supportive housing.

After a policeman shot and killed a teenage African American, a community in Cincinnati blamed law enforcement for racial profiling and riots expanded throughout the city. With the help of the Department of Justice as a mediator, Cincinnati made policy changes. The city now has an African American Police Association that brings police officers in communication with representatives of communities.

The militarization of police forces in cases such as Ferguson, Missouri’s riots has led the state of Utah to question what can be done to prevent such an overuse of force from happening. Utah expanded upon a law passed by Democratic legislature in Maryland, which Utah’s ACLU reworked with some libertarians, to require the police to provide data about SWAT team usage. Utah’s success demonstrates that demilitarization bills passed with bipartisan support are not impossible.

Global social and economic problems are difficult to change. However, fan-activism fuels the interests of fans of popular young adult fiction. Books such as Harry Potter and the Hunger Games have inspired activist groups that raise awareness of global hunger, reading, and relief supplies to impoverished nations, among others. Being a fan has served as a bridge to become politically active and solve the world’s problems.

Two columns on how Iran is treating its massive epidemic of injecting drug use by tackling it as a health problem, effectively lowering H.I.V. rates among drug users using an approach to drugs known as harm reduction.