If there are any Muslims who oppose terrorists, they are for all practical purposes cowering in fear of their own. At least that's the explanation I've heard for their silence.
It is somewhat surprising that you are not aware that there are many Muslims who oppose terrorists and who have written about their opposition to terrorism.
This website (Muslims Condemn Terrorist Attacks) provides links to the articles listed below:
muhajabah.com
Muslim Leaders
A Message from the Council on American-Islamic Relations
American Muslim Leaders Condemn Attacks
American Muslims Denouncing Terrorism
American Muslims and Scholars Denounce Terrorism on Anniversary of 9/11
Australian Muslims Condemn Terrorist Attack
Bin Laden Distorts Islam, Islamic Scholars Say
Bin Laden's Idea of 'Jihad' is Out of Bounds, Islamic Scholars Say
British Muslim leaders condemn terrorism
British Muslims Condemn Terrorist Attacks
Canadian Muslims Condemn Terorist Attacks
Islamic Statements Against Terrorism in the Wake of the September 11 Mass Murders
Islamic World Deplores U.S. Losses
Looking for Answers in Islam's Holy Book: What Islamic Scholars Have to Say
Muslim Reactions to Sept 11
Muslim Voices Against Extremism & Terrorism - Part II - Statements by Organizations
Muslim World Condemns Attacks on U.S.
Muslim rulers condemn WTC attacks
New Zealand Muslims Condemn Terrorism
Organization of the Islamic Conference Foreign Ministers Condemn International Terrorism
Quran a Book of Peace Not War, Islamic Scholars Say
Scholars of Islam Condemn Terrorism
Some American Muslims Take a Look at Their Communities' Shortcomings
U.S. Muslim Scholars Condemn Attacks
UK Muslim Leaders Condemn 'Lunatic Fringe'
When is jihad OK? Muslim Perspectives
Specific Muslim Scholars
A Common Word Between Us and You, by 130 Islamic scholars
Attacks on Civilians: Forbidden by Islam, by Shaykh Yusuf Qaradawi
Ayatollah Muhammad Husain Fadlallah of Lebanon condemns Osama Bin Laden, by Ayatollah Muhammad Husain Fadlallah
Bin Laden's Violence is a Heresy Against Islam, by AbdulHakim Murad (Tim Winter)
Defending the Civilians (a fatwa against terrorism), by Shaykh Muhammad Afifi al-Akiti
Expert Says Islam Prohibits Violence Against Innocents, by Shaykh Hamza Yusuf
Grand Sheikh of al-Azhar Condemns Suicide Bombings, by Shaykh Muhammad Sayyed Tantawi
High Mufti of Russian Muslims calls for Extradition of Bin Laden, by Russian Muslim leaders
Iran's Supreme Leader Condemns Attacks on U.S., by Ayatollah Ali Khamanei
Islam and the Question of Violence, by Seyyed Hossein Nasr, Iranian scholar
Jihad and the Modern World, by Dr. Sherman Jackson
Jihad: Its True Meaning and Purpose, by Muzammil H. Siddiqui
Most Prominent Sunni Muslim Scholar Condemns Killing of Civilians, by Shaykh Muhammad Sayyed Tantawi, Grand Imam of Al-Azhar University
Muslim Attitudes about Violence, by Shaykh Muhammad al-Munajjid
Muslim Voices Against Extremism and Terrorism - Part I - Fatwas, by various scholars
Muslim Voices Against Extremism and Terrorism - Part IV A few Quotes, by various scholars
On the Terrorist Attacks, by Imam Zaid Shakir
Prominent Pakistani Cleric Tahir ul Qadri condemns Bin Laden, by Tahir ul Qadri
Reclaiming Islam from the Terrorists, by AbdulHakim Murad, British scholar
Reflections on the National Horror of September 11, 2001, by Muzammil H. Siddiqui
Refutation of Bin Laden's Defense of Terrorism, by Moiz Amjad, Pakistani scholar
Response to a Question about Islam and Terrorism, by Moiz Amjad, Pakistani scholar
Saudi Clerics Condemn Terrorism, by Sheikh Abderrahman al-Sudayes
Saudi Grand Mufti Condemns Terrorist Attacks in U.S., by Shaikh Abdulaziz Al-Ashaikh
Scholars' Statements Regarding The Attacks In The United States, by Shaykh Abdul-Aziz Aali-Shaykh, Grand Mufti of Saudi Arabia and President of the Committee of Senior Scholars, and Shaykh Saleh Al-Lehaydaan, Chief Justice Of The Saudi Arabian Judiciary, and Shaykh Dr. Saaleh Ibn Ghaanem As-Sadlaan, Pres. Higher Studies Dept. Al-Imaam Muhammd Ibn Saud Islamic University
Spanish Muslim Clerical authorities Issue Fatwa against Osamah Bin Laden, by Spanish Muslim leaders
Terrorism Is at Odds With Islamic Tradition, by Khaled Abou El Fadl
Terrorism: Not a doorway to heaven, by Jamil Abdul Razzak Hajoo, of Idriss Mosque, Seattle
The Myth of Islamic Terrorism Exploded, by Shaykh Abdul Azeez bin Abdullah bin Baaz and Shaykh Muhammad Bin Saalih al Uthaymeen
The worst enemies of Islam are from within, by Hamza Yusuf
Top Saudi Cleric Says Attacks on U.S. a Terrible Crime in Islam, by Shaykh Salah al-Lahidan, head of the Islamic Judiciary of Saudi Arabia
Violence Against Innocents Violates Islamic Law, by Imam Siraj Wahhaj
What is jihad? What is terrorism?, by Statement by Muslim scholars
Individual Ordinary Muslims
A Curse Upon the Brigands Who Kill Children, by Aziz Poonawalla
A Dastardly Act, by Ikram Seghal
A Muslim Surgeon's Prayer for His Fellow Americans, by Aftab Ahmad
Amid simmering religious tension, Muslims denounce killing of Christian family, by (Associated Press report)
Area Muslims slam suicide bombing, by Washington Times report
Bin Laden's Fatwa is a Call to Plunder Not Jihad, by Aziz H. Poonawalla
Defaming, Defiling, and Falsifying Islam: A Condemnation of al-Qaeda, by Frank M. Afflitto, convert to Islam
Does the Quran Sanction Violence?, by Mohamed Elmasry
Hirabah versus Jihad, by Robert D. Crane, convert to Islam
Horrified by What Happened in the U.S., by Ahmad Y. Majdoubeh
Human Nature at Its Worst, by Amir Meshkin
I Believe in Allah and America, by Arsalan Iftikhar
I'm Not the Enemy, by Reshma Memon Yaqub
Islam Demands a Muslim Response to 9/11 (PDF), by Imad-ad-Dean Ahmad
Islam condemns all acts of terrorism, by Daar-ul-Ehsaan
Islam is Not the Source of Terrorism, by Harun Yahya
Islam is Not to Blame, by Omar Sarwar
Islam is a Religion of Peace, Not Terrorism, by Muhammad Ali
Islam: A Home of Tolerance Not Fanaticism, by Yusuf Islam (Cat Stevens)
Islamic Scholars Should Speak Up for the Truth about Islam and Jihad, by Laila Nasheeba-Or
Jihad Means Waging Peace and Justice, by Mohamed Elmasry
May God Touch All of Us with His Infinite Grace, by Susan Abulhawa
Muslim scholars reach out to Pope, by BBC News
Muslims Must Not Let Terrorism Become the Voice of Islam, by Blerime Topalli
My Fatwa on the Fanatics, by Ziauddin Sardar
Not In My Name: A Treatise Against Religious Intolerance, by Richard L. Dixon, convert to Islam
Osama Bin Laden: An Enemy of Islam, by Muqtedar Khan
Press Release, by Khalid Usman, Councillor, Ward 7, Markham, Ontario
Salafi scholars condemn terrorism, by collected by Just your average Muslim
Some Misappropriations of Quranic Verses, by David Dakake, Islamic Research Institute (PDF)
Terror Is Not Islam, by Kari Ann Owen (convert to Islam)
The Meaning of Jihad, by Hesham Hassaballa
The Real Meaning of the Concept of Jihad, by Ahmed Motiar
Twin Towers Viewed from a Western Minaret: Thoughts of a Convert to Islam, by Michael Wolfe
Under Attack, by Imad-ad-Dean Ahmad
What Does the Quran's 'Verse of the Sword' Really Mean?, by Hesham A. Hassaballa
When the innocent are murdered, we all go into the dark with them, by Ziauddin Sardar
Who Hijacked Islam, by Anwar Ibrahim, Malaysian dissident
World's future hinges on peace between faiths, Islamic scholars tell Pope, by Riazat Butt and Martin Hodgson |