Kkk .. although ruthless in some of their criminal activity, was motivated by mostly bigotry. Islam is a system of government 1st,.. a religion 2nd, but identifies as a religion. All islamic countries have most of it governance based on islamic law, shariah, etc. The kkk was very contained,.. and not approved by the general population, .. unlike Islam. We have already seen what small numbers of nuts can do, such as on 9/11,... so i agree with you,.. that the threat to the US is far worse by islam,... than the klan ever was.