Portside

Different palaeolithic populations around the world might have developed a crucial toolmaking skill independently. No mysterious migration required to explain how chipping technique appeared in different continents.

Drug possession is the No. 1 reason people were in Cook County Jail last year. That’s been the case for the better part of the past decade. Since 2006, people have been booked and released more than 100,000 times for possession, according to jail records. And during that same time period, taxpayers have spent $778 million jailing people on the lowest-level possession charges.

So far, 121 countries have signed the treaty, and 154 voted in favor of its adoption in April 2013 in the General Assembly. The successful entry into force of the ATT will be a big win for arms control campaigners and NGOs, who have been fighting for the regulation of the arms trade for more than a decade.

Roughly 20 to 25 percent of all union contracts have recently contained some kind of two-tier payment. Such arrangements, often made in response to threats of plant closures or job losses, can turn into strategies for long-term suppression of wages. They can also generate conflict and resentment among workers making vastly different amount of money and undermine solidarity.

Edward E. Baptist’s brilliant book, The Half Has Never Been Told, soars because of the author’s decision to root his analysis in the human dimension.

UNITE HERE and the Teamsters have been quietly negotiating a contract with Harrah's Hotel and Casino in New Orleans for the last six months that, when inked, would double the size of organized labor's tiny footprint in the New Orleans tourism economy.

Rising inequality means rising distrust: A study published last year by the National Academy of Sciences suggests that the upper classes are more likely to engage in what has traditionally been considered unethical behavior. . . Economic inequality, political inequality, and an inequality-promoting legal system all mutually reinforce one another. . . As always, it is the poor and the unconnected who suffer most from this, and who are the most repeatedly deceived.

Edward Snowden's Christmas message - together we can end mass surveillance, otherwise "'a child born today will grow up with no conception of privacy at all.' Listen to message broadcast on England's Channel 4; and Washington Post story, based on 14 hours of interviews conducted in Moscow. "All I wanted was for the public to be able to have a say in how they are governed," Snowden said.

Pope Francis, in his messages and appointments, seems to be steering the Roman Catholic Church into more moderate terrain, away from some of the conservative ideological interpretations of the recent period. Jim Williams reviews The Radical Jesus. "Who was Jesus anyway? What did his life and teaching mean? There are so many views - from the Religious Right to Rev. Cornell West. My view is that Jesus is whoever you want him to be. You can find the quotes to fit."

Dave Van Ronk's ex-wife, Terri Thal, reviews the film, Inside Llewyn Davis. Llewyn Davis differs from David. - there are so few similarities. The Coens say the movie isn't about Dave, and they are correct. Most of the acting is very good. Oscar Isaac is excellent -- he's real, and he brings pathos and anger to Llewyn Davis. His performances of David's songs are good. The music? It's done well, but the movie never shows how it comes about.