a tooth for a tooth

“The law of Leviticus states ‘an eye for an eye, a tooth for a tooth, a life for a life.’

“On game day, he’s Old Testament, an eye for an eye, a tooth for a tooth,” his son Tommy Bowden, a former Clemson football coach, told the CBS News program “60 Minutes II.”

Mike Fair, 63, of the East Side, brought an amplifier and a microphone to the scene, and expressed his anger, suggesting “there should be an eye for an eye and a tooth for a tooth.”

So he took matters into his own hands — an eye for an eye, a tooth for a tooth, unbearable noise for unbearable noise.

At first glance, the answer seems obvious: Of course, we should strike back—an eye for an eye, a tooth for a tooth—or how else will we deter the hackers, and others like them, from striking again?