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"The attack on the Capitol building following the 2020 election was an extraordinarily large and brazen crime. Conspiracies were formed on social media in full public view, the law-breakers paraded on national television with undisguised faces, and with outgoing President Donald Trump openly cheering them on. The basic concept of law enforcement--investigators find criminals and serve justice--quickly breaks down in the face of such an event. The system has been strained by the sheer volume of criminals and the widespread perception that what they did wasn't wrong. A mass of online tipsters--"sedition hunters"--have mobilized, simultaneously providing the FBI with valuable intelligence and creating an ethical dilemma. Who gets to serve justice? How can law enforcement still function as a pillar of civil society? As the foundations of our government are questioned, the FBI and Department of Justice are the first responders to a crisis of democracy and law that threatens to spread, and fast. In this work of extraordinary reportage, Ryan Reilly gets to know would-be revolutionaries, obsessive online sleuths, and FBI agents, and shines a light on a justice system that's straining to maintain order in our polarized country. From the moment the police barriers were breached on January 6th, 2021, Americans knew something had profoundly changed. Sedition Hunters is the fascinating, high-stakes story of what happens next" --

This article reviews recent research evidence, largely from systematic reviews, on a number of aspects of childhood obesity: its definition and prevalence; consequences; causes and prevention. The basis of the body mass index (BMI) as a means of defining obesity in children and adolescents is discussed: a high BMI for age constitutes obesity. In recent years the prevalence of obesity has increased dramatically across most of the world, and in the UK obesity prevalence is high and continuing to increase. Despite a widespread perception that obesity in childhood or adolescence is a cosmetic issue, the research evidence shows that it does matter to physical and psychological health and that there are adverse health risks for both the obese child and the adult who was obese as a child. Few interventions aimed at preventing or treating childhood obesity have been successful. There is an urgent need for more research on better strategies that will enable children and adolescents to make long‐term changes to their dietary and physical activity behaviour in order to prevent obesity.