Al Qaeda
Nidal's long dormant organization
Sheik Rahman's group Al Gama'a al-Islamiyya
Al Jihad
All these at one time or another threatened and attempted to attack US interests. Two of them have struck on US soil.
Some of the big guns of Arab terrorism, such as HAMAS, Hizzbullah threatened to attack the US at a time more than 6 years ago. Operation wise they have not been inclined to attack US targets in recent years and show no interest of doing so in the future. The remnants of the IMU after Namangani was killed also show no interest in the US. For that matter the multiple terror organizations based in Pakistan attacking India seem mostly interested in attacking India. There are some elements of the organizations there that have been responsible for the consulate, church and French bus bombings. They don't currently pose a threat to our interests here in the US.
You really ought to know better than to assume that the radical Muslim groups have no interest in attacking the U.S. You've been on Free Republic long enough to have read those threads that I'm referring to in my previous posts.
There were reports from our own senate intelligence committee back in May that claimed Islamic groups like Hezbollah and Egyptian-based Islamic Jihad also could be planning attacks in the U.S. Al Queda is not our only enemy. Our support for Israel and our military presence in Afghanistan has probably strengthened their resolve. A few months back C-SPAN ran live feed of a Palestinian rally in our Capital. There were pro-Palestinians openly calling for Jihad here in America. I try to catch Steve Emerson and Daniel Pipes every chance I get. Steve Emerson's book is a real wake-up call.