National Institute of Justice’s website http://www.nij.gov/topics/crime/terrorism/Pages/welcome.aspx FBI defines terrorism the unlawful use of force or violence against persons Natl. Institute of Justice adopt defines terrorism Title 22 of the U.S. Code, Section 2656f(d) Title 22 of the U.S. Code, Section 2656f(d) Then there’s the DOJ different different Title 22 of the U.S. Code, Section 2656f(d)