Five Pakistani jihadi organisations are members of bin Laden's International Islamic Front (IIF) for Jihad Against the Crusaders and the Jewish People formed in February,1998. These are the Harkat-ul-Mujahideen (HUM---previously known as the Harkat-ul-Ansar HUA), the Harkat-ul-Jihad-al-Islami (HUJI), the Jaish-e-Mohammad (JEM), the Lashkar-e-Toiba (LET) and the Lashkar-e-Jhangvi (LEJ).
http://www.saag.org/papers15/paper1420.html
Jaish e Mohammad has a older chequered history.
Jaish e Mohammad wasn't what freaked me out...it was Sheikh Omar Bakri Muhammad's name. There apparently is a faction of his group in the US headed by someone at the University of Texas, per the link in my previous post. I live in Texas...yikes!