TUFAIL MOHAMMED, Muslims and christians are terrorists because they believe in killing innocent humans as sacrifices, and also because of the following beliefs.
According to muslim holy books non-muslims are kafirs, who should be tortured, robbed and killed, and that peace is possible only after all the non-muslims are dead.
Similarly according to the christian holy books non-christians are devils and should be tortured, robbed and killed, and that peace is possible only after all the non-christians are dead.