Politics

• Tyranny is an ever-present threat to civilizations. Here's how Classical Greece and China dealt with it
• Beyond health: The political effects of infectious disease outbreaks
• Health-impaired world leaders raise nuclear war fears, study suggests
• Mathematicians reveal factors driving gun sales in America
• Reading news on social media for two weeks improves knowledge and fake news recognition, study finds
• Do local voting rights affect migrants' participation in protests?
• Perceived polarization may reflect inner circle agreement more than actual societal division
• There are many things American voters agree on, from fears about technology to threats to democracy
• Data show Canadian border plays minor role in US fentanyl trafficking compared to southern entry
• Youth volunteering encourages young men to vote for the first time, research shows
• Civil servants' reactions to democratic decline reflect deep political divides
• Social media can support or undermine democracy. It comes down to how it's designed
• Russia is paying schoolgirls to have babies. Why is pronatalism on the rise around the world?
• New US directive for visa applicants turns social media feeds into political documents
• Q&A: How eyewitness memory can serve justice