Terrorism is the systematic use of terror, especially as a means of coercion. In the international community, however, terrorism has no universally agreed, legally binding, criminal law definition. Common definitions of terrorism refer only to those violent acts which are intended to create fear (terror), are perpetrated for a religious, political or, ideological goal; and deliberately target or disregard the safety of non-combatants (civilians). Some definitions now include acts of unlawful violence and war. The use of similar tactics by criminal organizations for protection rackets or to enforce a code of silence is usually not labeled terrorism though these same actions may be labeled terrorism when done by a politically motivated group.

The word "terrorism" is politically and emotionally charged, and this greatly compounds the difficulty of providing a precise definition. Studies have found over 100 definitions of “terrorism”. The concept of terrorism may itself be controversial as it is often used by state authorities (and individuals with access to state support) to delegitimize political or other opponents, and potentially legitimize the state's own use of armed force against opponents (such use of force may itself be described as "terror" by opponents of the state).

Zakir Abdul Karim Naik (Urdu: ذاکر عبدالکریم نائیک; born 18 October 1965) is an Indian public speaker on the subject of Islam and comparative religion. He is the founder and president of the Islamic Research Foundation (IRF), a non-profit organisation that owns the Peace TV channel based in Dubai, UAE. He is sometimes referred to as a televangelist. Before becoming a public speaker, he trained as a doctor. He has written two booklets on Islam and comparative religion. He is regarded as an exponent of the Salafi ideology; he places a strong emphasis on individual scholarship and the rejection of "blind Taqlid", which has led him to repudiate the relevance of sectarian or Madh'hab designations, all the while reaffirming their importance.

Zakir Abdul Karim Naik was born on 18 October 1965 in Mumbai, India. He attended St. Peter's High School in Mumbai. Later he enrolled at Kishinchand Chellaram College, before studying medicine at Topiwala National Medical College and Nair Hospital and later the University of Mumbai, where he obtained a Bachelor of Medicine and Surgery (MBBS). His wife, Farhat Naik, works for the women's section of the IRF.

Michael Parenti is an American political writer, historian, and culture critic who writes on scholarly and popular subjects. He has taught at American and international universities and has been a guest lecturer before campus and community audiences. He has played an activist role in political struggles, and in various anti-war movements.

Parenti received his Ph.D. in political science from Yale University. He is the author of twenty four books and many more articles. His works have been translated into at least eighteen languages. Parenti lectures frequently throughout the United States and abroad. He wrote The Assassination of Julius Caesar, He is the father of Christian Parenti, an author and contributor to The Nation magazine.

Parenti's writings cover a wide range of subjects: U.S. politics, culture, ideology, political economy, imperialism, fascism, communism, democratic socialism, free-market orthodoxies, conservative judicial activism, religion, ancient history, modern history, historiography, repression in academia, news and entertainment media, technology, environmentalism, sexism, racism, homophobia, Venezuela, the wars in Iraq and Yugoslavia, ethnicity, and his own early life. Perhaps his most influential book is Democracy for the Few, now in its ninth edition, a critical analysis of U.S. society, economy, and political institutions and a college-level political science textbook published by Wadsworth Publishing. In recent years he has addressed such subjects as "Empires: Past and Present," "US Interventionism: the Case of Iraq," "Race, Gender, and Class Power," "Ideology and History," "The Collapse of Communism," and "Terrorism and Globalization."