The government has been grappling with the definitions of terrorism and extremism following the conviction of 18-year-old Axel Rudakubana for the murders of three young girls in Southport last July.

WASHINGTON — With authorities officially investigating the deadly Bourbon Street attack as "an act of terrorism," many people may be wondering exactly what federal officials count as "terrorism." At ...

PHOENIX — An Arizona Senate bill would expand the state’s definition of a terror attack and increase the minimum time a person found guilty on terror-related ...

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