Brian Levin , a professor at California State University , San Bernardino , who runs the university 's Center for the Study of Hate and Extremism and has monitored the California prison case , said the indictments underscored concerns about Muslim extremist groups in prisons recruiting '' homegrown terrorists '' to take part in what has been seen largely as a foreign-based Islamic movement .
California /location/location/contains San Bernardino
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California
LOCATION
San Bernardino
LOCATION
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