We look at how the House of Representative voted Friday to decriminalize marijuana at the federal level and “address the devastating injustices caused by the War on Drugs,” as voters in Arizona and New Jersey approved ballot measures in November that legalize the possession and use of recreational marijuana for adults aged 21 and up.

Ride-hailing companies Uber and Lyft scored a major victory with the passage of Proposition 22 in California, and worker rights advocates fear they will push similar measures in other states. Prop 22 will exempt companies in the so-called gig economy from having to classify their workers in the state as employees rather than as independent contractors.

A Black mother who was attacked by a horde of Philadelphia police officers is speaking out about the harrowing experience. Rickia Young was driving an SUV with her 2-year-old son and teenage nephew on October 27 as the city was engulfed in protest over the police killing of Walter Wallace Jr. earlier that day. Officers descended on the vehicle, broke its windows, assaulted and arrested her and separated her from her child.

We continue our conversation with medical anthropologist Dr. Paul Farmer, whose new book, “Fevers, Feuds, and Diamonds,” tells the story of his efforts to fight Ebola in 2014 and how the history of slavery, colonialism and violence in West Africa exacerbated the outbreak. “Care for Ebola is not rocket science,” says Dr. Farmer, who notes that doctors know how to treat sick patients.