First of all this is a tragedy and an abhorrence on American soil or anywhere in the World.
None have the right to worship unless it is Allah. Muslims are told to fight unbelievers until they are either dead, converted to Islam, or in a permanent state of subjugation under Muslim domination. Allowing people of other faiths to live and worship independently of Islamic rule is not an option.
However there are Laws in the Quran that prohibit killing if they are perceived as legal right to live, the exceptions are Muslims can kill Muslims if they reject their religion, if a Muslin kills someone or commits adultery. Non-Muslims can be killed under the teachings of whoever attacks Muslims or those who try to stop a Muslim caliph from spreading Islam to the world.
What can Non-Muslims do to protect themselves and families from a Radicalized environment of the misguided Muslims who dictate violence around the world because of a few quotes that are warped into a state of action to commit these heinous crimes?
Understandably they are poor countries with horrid Leadership. Are they begging for help ... or do they just want to kill all non-believers? Do they need food, water shelter? Can we reach out to these people? Can we help extremist Muslims around the globe to see peace as a possibility?
What are the answers to prevent this from happening...and don't run out and say and take all our guns when it looks like you're going to need them.