Important lessons for Philadelphia from Chicago's three-year decline in gun violence

An ambitious plan for the 69-acre Regent Park neighborhood is disrupting entrenched notions of class, race and religion, at a time when concerns over income inequality and immigration are growing.

A nonprofit organization, the Internationals Network for Public Schools, delivers a first-class education to the children of illegal immigrants, helping to break the cycle of poverty and provide them a path to advance in life.

Across the country, hospitals are embracing intensive intervention programs to help victims of violence — including those who have criminal histories — after they have been brought in for treatment of injuries. Such programs can help prevent retaliation, reduce the chance a patient will be violently injured again, and put people on track for success.

The Centre for the Prevention of Radicalization Leading to Violence in Quebec has expanded rapidly, becoming a model for programs around the world. What sets it apart from projects in Europe and the United States is that it confronts extremism of all stripes — not just Islamist — and focuses on behavior that signals the risk of violence, not just radical ideas, only involving law enforcement as a last resort.

Students in a small town in Michigan are outperforming their peers statewide. Over half of the students are American Indian and many come from low-income families. Because the town's reservation can't be taxed, the school receives additional federal funding. And teachers have put it to good use - by hiring more staff, decreasing class sizes, and frequently evaluating students' progress. One fourth grader offered her own theory: "Well, everyone's accepted here for who they are, no matter if they're Irish, Native, African American or just French."

In a rapidly gentrifying Mexico City neighborhood, two artists refurbished an icon and set up an altar for Santa Mari La Juaricua, a saint to protect residents from eviction. The saint raises awareness and acts as a reminder about housing issues and the icon has been taken up by the residents and has been used in processions and protests.

In Mancos, Colorado, the school board voted “no” to arming school staff in the traditionally Western town. Across the United States, the question of arming teachers is being brought up as a response to the increase in school shootings. The policy is highly contested, with some saying it provides students with a feeling of safety, but others saying the risks associated are too high. For the Mancos community, such a vote is a surprise given the town’s gun-friendly history, but is explained by the increase in new residents.

Crime-tracking mobile apps give millions of Brazilians crowdsourced data on urban violence, alerting people to dangerous places and filling gaps in government data on shootings, robberies, and other risks. But apps such as Fogo Cruzado (“Crossfire”) and Onde Tem Tiroteio (“Where There's a Shooting”) offer statistically crude glimpses of crime, distorted by media and racial biases that one expert blames for myths about the risks people actually face.

Tribaja connects a diverse pool of qualified candidates to tech companies that have cultivated supportive work environments for people of color in an industry that has famously lacked inclusion. Tech companies have attempted to draw a more diverse population into their workforce but have met with little success. "Tribaja has helped about 100 people find jobs this past year."

The Kansas City Streetcar provides fare-free transportation for residents, which helps to get them downtown and promote more economic development. The fare-free streetcar also makes transit more equitable by removing barriers for low-income passengers and improving mobility for people with disabilities.