What kind of sick ideology teaches this type of wanton violence?

i am so surprised that non of them dare to answer your question to defend their acts. They have killed thousands and thousands of innocent muslims and non muslims in the name of their belief. i must agree with you that their belief is a sick ideology. i feel so ashamed to the non muslims that there are such belief in Islam! And they too are to be blame for causing all the problems in Palestine, Lebanon, Iraq, Iran, Afghanistan and i guess almost everywhere in the world. They are too engrossed in their belief that they do not realised that they have been used and supported by the enemies of Islam. They are the likes of Taliban, al Qaeda and many more in almost every place in this Earth. They preached hatred and murders.. and if they have their chance they will destroy our beloved Pophet Muhammad sawa tomb.... they will never allow the muslims to build a Shrine for our beloved Prophet sawa.... they are the wahabis!!!