Our great weaknesses:
1. We are ignorant of those who have already decided to be our enemies.
2. We are complacent and distracted, we are not paying attention to what Islam is doing in Europe and around the world.
3. We project onto the followers of Islam what we ourselves couldn’t do.
We can’t imagine ourselves ever chopping off heads or killing people over religious differences, so we find ourselves unable to believe anyone else would do such a thing.
But the followers of Islam would use violence (once they have the power of numbers and a sense of impunity) they have done it and they will do it.
Because that is what they are taught.
By the Koran.