Again, Charlie Hebdo?

At a point, the higher good of making sure that nobody else becomes a victim like especially Georges Wolinski did outweighs the freedom of speech. Did Georges Wolinski really survive the German part of Holocaust only to become a Holocaust victim 70 years later and get his grave spit on by "Charlie Hebdo"? Did Georges Wolinski become a martyr only for evildoers whom will use any excuse to use "Charlie Hebdo" as an excuse once again?

"The words of a wise man's mouth are gracious; but the lips of a fool will swallow up himself. The beginning of the words of his mouth is foolishness; and the end of his talk is grievous madness. A fool also multiplieth words; yet man knoweth not what shall be; and that which shall be after him, who can tell him?"

Even wise words can become foolish in the mouths of fools:

"A fool hath no delight in understanding, but only that his heart may lay itself bare.....[and a] fool's lips enter into contention, and his mouth....is his ruin, and his lips are the snare of his soul." 

Arguing with fools is foolish. Those who emulate Mohammed and follow Early Islam look for anything to do evil like Mohammed did:

"Answer not a fool according to his folly, lest thou also be like unto him."Answer a fool according to his folly, lest he be wise in his own eyes."  

How else can I say that sometimes holding your tongue is better but that holding your tongue is sometimes appropriately answering a fool according to his folly?