How many movies are actually about men? What changes by genre, era, or box-office revenue? What circumstances generate more diversity? read more →

This investigation of scientific p-values is anchored by an interactive graphic where users can give "p-hacking" a try on their own. These are tricky... read more →

Mass killings in the United States are most often carried out with guns, usually handguns, most of them obtained legally. There is no universally accepted... read more →

Comments allow readers to respond to an article instantly, asking questions, pointing out errors, giving new leads. At their best, comment threads are... read more →

Is crime in America rising or falling? The answer is not nearly as simple as politicians sometimes make it out to be, because of how the FBI collects and... read more →

America is being watched from above. Government surveillance planes routinely circle over most major cities — but usually take the weekends off. read more →