One of our greatest modern weaknesses is an inability to recognize evil or even to acknowledge its existence.

As our society has grown further from the teachings of the Bible, we’ve become progressively blinder toward what civilized people had previously acknowledged as fundamental reality: Evil exists and is active in human life.

I always wince when my liberal, and even some conservative, friends dismiss use of illegal drugs as a harmless pastime — something “everybody” supposedly does.

Sadly, it’s true that the majority of American adults have probably at least tried illegal drugs in their lifetime, and far too many are addicted to one degree or another.

But drugs remain one of the greatest catalysts for evil that exist in our world.

Police in Miami were faced with a horrific example Saturday, when they shot to death a snarling, naked man who was caught eating another man’s face.

The proximal cause for the attacker’s cannibalistic behavior as of this writing seems to be cocaine or some other powerful street drug.

The victim, if he survives, will be hideously scarred for life by all accounts available at this moment. According to written reports, his nose, possibly his eyes and large masses of his flesh were chewed off of him and devoured by the attacker.

There was a similar case some years ago in Bakersfield where a man on PCP tried to eat his 4-year-old son’s eyes, leaving the child partially blind. That man, Angelo Mendoza, was found not guilty by reason of insanity.

I’ve been privy to far too much drug behavior in my lifetime, some by friends, and a lot by family. I’ve seen the manic behavior, violent mood swings and recklessness careening between suicidal and homicidal.

I know of one family member, normally an upstanding citizen, who under the influence of alcohol or something else pushed another down a flight of stairs, leaving him to suffer as he bled all night long, finally falling into a fatal coma.

I’ve wept over another family member who thought drugs were harmless and wound up murdered by her dope-dealing “friends.”

It’s far too easy to say it was the alcohol or the drugs at fault, to remove responsibility from the user. That’s just a comforting lie.

Though many will deny it’s so, I believe that using drugs or excessive amounts of alcohol is just an excuse people use to either let out something dark that lives in their hearts or subconsciously to leave themselves open to the control of evil.

Let me speak plainly here. Through long searching, I came to believe in Jesus Christ, and a lot of his career was spent battling demons. I don’t see, therefore, that you can believe in Christ and not believe that demons and the devil exist.

Along with that understanding comes the realization that such malevolent beings are active in the world, a realization that has been borne out in my experience. School massacres, sudden suicides, every case where a seemingly loving parent suddenly kills their family — they always makes me wonder if the accused criminals were really in charge of their own actions.

There are probably countless ways evil can infect a human heart, but using drugs to dull the wits and soften the will is just an open invitation to something malicious, insatiable and possibly as old as time.

Our society, especially our young people, are ill served by so-called leaders who brag about their drug abuse as if it were a badge of honor.

President Obama, in a soon-to-be-released book, is revealed to have been deep in the drug life during his youth and possibly into his adulthood. Liberals are already making excuses for him and making up stories about Romney as distractions.

But the extent of the drug abuse by the president and his “Choom Gang” is not the sort of thing you can just walk away from unscathed. It changes you.

To my thinking, it explains a lot about this administration.

But in our modern pride and foolishness, we can’t see evil when it’s right in front of us.