The arrest of two southern California men last week who were planning to travel to Syria to join the Islamic State brings the number of U.S.-based individuals involved in international terror-related cases this year to 40. (UPDATE: with the arrest of Houston-area Asher Abid Khan late Monday for supporting ISIS, the tally is now 41.)
This number highlights the metastasizing Islamic terror threat in the American homeland. At the current pace, by the end of June — halfway through 2015 — the number of cases will exceed the number from the past two years combined (48).
The Islamic State, as well as al-Qaeda affiliates and other Islamic terror groups, have repeatedly called for supporters to conduct attacks inside the American homeland: