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DAVID GREENE, HOST:
For days now, Washington has been awash with rumors that President Trump is about to fire more senior members of his administration. Trump himself has teased the changes to come more than once, including this comment yesterday.
The Parkland shooting last month has energized student activists, who are angry and frustrated over gun violence. But it's also contributed to the impression that school shootings are a growing epidemic in America.
In truth, they're not.
"Schools are safer today than they had been in previous decades," says James Alan Fox, a professor of criminology at Northeastern University who has studied the phenomenon of mass murder since the 1980s.