+1 this. I've been saying this EXACT thing for some time. In fact, I follow it with "Until you find a way to remove the evil out of the heart of man, you will always have violence and threats to your safety."
Whether you are a Christian or not, the one thing all Christian faiths here in America always taught was a strong foundation of a code of morality. Other institutions taught this as well and we, as a nation, (overall) treated each other within the boundaries of that code of morality (there are always exceptions). Since the end of WWII, and especially since the 1960's, the nation has been replacing this code with a "new morality" (or lack thereof) as the traditional morality was considered "too restrictive". With each passing year more & more people replace the values and beliefs that once kept society polite with their own sense of right & wrong. More often than not, these new beliefs have been focused on the individual, enforcing an "instant gratification" agenda.
The demons are released and unrestrained evil continues to expose itself as society no longer feels it's right to restrict people's "expression of self". Sadly, I believe that we're just seeing the beginning of greater and greater acts of evil and all we can do is prepare to protect ourselves from the eventuality of experiencing it firsthand.
ETA: There are those who believe the exact opposite of what Bert & I have stated. They claim to believe in the overall "goodness" of mankind. Yet this same group doesn't trust the individual; believing instead that the individual needs more legislation and government involvement to dictate an individuals behavior. Their claims of what they believe and their actions to enact more control are in direct conflict with each other, yet they don't see this as a problem. These people see folks like Bert & I as alarmists, nutjobs and conspiracy theorists. They think those of us who feel the responsibility to protect ourselves against the evil of mankind is sheer lunacy. We know these people as "liberals".