Not all muslims are terrorists, but most terrorists are muslims.
Great Britain - Love it or leave it.
Unfortunately, a large section of muslims take this to mean that the Koran, being of god, shall prevail over all laws of man. For example, they believe that democracy is the law of people, not god, and so it is not for the devout muslim. Further, the contents of the Koran (evolved several hundred years back in a nomadic, warlike, women-suppressing community) are believed to be equally valid now.
In countries where islam is dominant, there is war between factions or between secularists and islamists. In the countries where they are minorities, they have problems with the majority community (no matter which community this is--look at Mindanao, where one of the most pacific people, the Philippinos, are finding it difficult to coexist because of the Abu Salem group).
It is a backward agressive idology built on racism and religious discrimination, giving rights to people according to their gender and religion. It is the complete opposite of our culture that is built on human rights and the separation of law, state and church, an ideology that tolerates other ideologies only after subduing them. Since the very early years Muslims brought destruction and death to peoples who were unlucky enough to get in the Muslim's way. Historical relations with Europe are almost entirely about Europeans fighting off Muslim agression since the early IXt century right until the XIXth when the final Muslim soldier was kicked out of mainland Europe (from Turkish-occupied Bulgaria). However, Muslims like to keep quiet about their bloody history but never fail to point the fingers of the Crusades, as if they hadn't waged a continuous war against other cultures an all continents wherre Muslims set foot.
The way Muslims lie and deceive others about the nature of their ideology is unparalleled. They also seem to suffer from a collective denial of facts which prevents them from realising the dark side of their religion and doing something about it, like Protestantism did to renew Christianity.
Racism, sexism, intolerance and aggression are not unknown to other cultures but only Islam justifies this things by "the will of God".
It is probably worse than Fascist as not even Nazis took the streets in happy celebration after killing several thousand civilians in a country with which feeds and supports many Muslim states.
Gravely misunderstood and even patronised in Europe, Islam will lead to continent-wide civil wars in about 50-60 years on the parts of the continent where was stupid enough to let this Fascist ideology thrive.
Muslims usually claim that they are not all terrorists, which equals to whitewashing Nazism (the ideology probably closest to Islam) by saying that you can't blame a whole ideology for the crimes of a few Eichmanns.
The greatest allies of Islam are political correctness and tolerance, the earlier out of simple ignorance, the latter out of cowardice and fear of conflict.
Islam is the enemy of our values like freedom and human rights and therefore a deadly and uncompromising enemy of our civilization as well.
"A Muslim must not enslave another Muslim but is free to do so with a non-Muslim"
Present-day Muslims lead the world in the production of pee-stained sheets in which they wrap themselves and their ugly women, and in dynamite belts they use to blow themselves up in pizza parlors.
Islam is NOT a religion of peace: it means "submission." It preaches peace only to OTHER Muslims. It teaches that you must make war on all other religions. It allows Christians and Jews to live only as second-class citizens (must pay jyzia tax) but it calls for beheading all others, including Buddhists and Hindus.
All religions have extremists, and some posters have pointed out the KKK. But the KKK was a long time ago. The KKK dis not blow up buildings and airplanes all accross the world even when it was active. Islam is currently waging terror war (i.e., deliberately targets only civilians) in: Thailand, East Timor, Phillipines, Chechnya, Jammu-Kashmir, Afghanistan, Iraq, Lebanon, Israel, Nigeria, Sudan, and I can keep going. The preferred method of war for the Muslim is to attack women and children and to assassinate opponents in dark streetcorners at night. Otherwise, Islam has never really won a conventional war against armies, even in its history.
All of the quotations in the first guy's post are true, read the Koran! It is a pervert book.