Counting police shootings in the US

Police kill about 3 men per day in the US, according to new study [Click here to view this message in your web-browser](. Edition: US 6 August 2018 [The Conversation]( Academic rigor, journalistic flair Editor's note Philando Castile, Tamir Rice, Michael Brown. Many Americans have heard the names of civilians shot and killed by police officers. But the official government records on all police-involved homicides are spotty, say scholars Frank Edwards and Michael H. Esposito. Their new study looks at data gathered by journalists and researchers, calculating that [the risk of police-involved death is two times higher than indicated by official sources](. The United States’ tit-for-tat trade war with China continues to escalate as Chinese officials release a new list of $60 billion in retaliatory tariffs. President Trump, who says he’s fighting for working-class Americans, claimed on Sunday that his tariffs will make the U.S. “much richer.” While some Americans may benefit from a tariff war, the [working class will not be among them](, argues political economist Jeffrey Kucik. [How do brains turn experiences into lasting memories](? New research suggests the first step might be keeping track of the genes that turned on within activated neurons. The temporary molecular records they create can then be “read” to create enduring physical changes to the neuron itself for long-term memory. Aviva Rutkin Big Data + Applied Mathematics Editor Top Stories There are multiple efforts to count police homicides in the U.S. a katz/shutterstock [Police kill about 3 men per day in the US, according to new study]( Frank Edwards, Cornell University; Michael H. Esposito, University of Washington Official records on police homicides are full of holes. A new study tries to fill in the gaps – and finds new evidence of racial and regional inequality. Tariffs may help certain industries, but their broader impact on middle- and lower-income consumers is generally harmful. Reuters/Lawrence Bryant [How Trump’s trade war affects working-class Americans]( Jeffrey Kucik, University of Arizona The president says he's fighting his trade war because a generation of free trade has failed working-class Americans. An economist explains why tariffs will only make things worse. Like the day’s newspaper, the brain has a temporary way to keep track of events. TonTonic/Shutterstock.com [Brains keep temporary molecular records before making a lasting memory]( Kelsey Tyssowski, Harvard University How do brains convert experiences into memories? New research explores the chain of events by focusing on what genes shift into gear when neurons are firing. 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