This comment amazes me! There have been several posts here on Free Republic about the stated intentions of various radical Muslim groups of attacking targets in the U.S. and Israel. Are you a newcomer to Free Republic?
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.