- ISNA was founded in 1981 by members of the Muslim Brotherhood, an Egyptian radical movement that seeks to spread Sharia law globally. Many of ISNA's original leaders who were tied to the Muslim Brotherhood remain in leadership positions today.
- ISNA and its subsidiary NAIT were named as unindicted co-conspirators in the largest terrorism financing trial in U.S. history for providing support to Hamas, which was founded by the Muslim Brotherhood. A government memo details how NAIT funneled money to Hamas leaders.
- While ISNA claims it has evolved beyond its radical Muslim Brotherhood roots, many original leaders who were involved in Muslim Brotherhood-linked organizations remain actively involved in