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U.S. active shooter incidents increased by 52 percent in 2021, FBI report says
According to a new report from the FBI, the U.S. saw a 52 percent increase in active shooter incidents from 2020 to 2021, with many of those shootings becoming more deadly. NBC News law enforcement analyst Cedric Alexander explains how the patterns of active shooters have changed and what can be done at the federal, state, and local level to stop gun violence.