In light of the seemingly imminent demise of Canada's long gun registry, readers may be interested in the latest gun control developments in the United States, where the Associated Press reports that 24 states have passed 47 new laws loosening gun restrictions over the last two years. Arizona, Florida, Louisiana and Utah have made it illegal for businesses to bar employees from storing guns in cars parked on company lots. Tennessee and Montana have passed laws that exempt weapons made and owned in-state from federal restrictions. In Tennessee, this would include the .50-caliber shoulder-fired rifle made by Barrett Firearms Manufacturing, which the...

How much does class size affect performance on standardized tests? The charts displayed below plot US state-level student-teacher ratios against against the results for three parts of the SAT Reasoning Test (formerly Scholastic Aptitude Test and Scholastic Assessment Test) used in US college admissions. .. .. .. These tables, from the wonderful FlowingData website, obviously use US data, but the results may have implications here. States with higher SAT scores are shown in green, and generally have lower student-teacher ratios. The ratio is not perfect, however. Utah has the largest classes in the US, but maintains better-than-average test scores. Maine has the smallest classes in the...