Several violent incidents on the subway, including two murders this past weekend, have heightened safety concerns. But experts say the system remains statistically safer than the streets. Meanwhile, federal immigration authorities say the man accused of setting a woman on fire on an F-train entered the U.S. illegally, reigniting debates over mental health services and sanctuary city policies. Finally, WNYC’s Janae Pierre and reporter Michael Hayes revisit his reporting on Millburn, New Jersey, and its resistance to building affordable housing.