The rules of argument generally hold that you need three examples to prove your point. When yet another bomb exploded in Atlanta late last Friday night, this time in a crowded gay and lesbian bar, it was the third such incident in the past seven months. A particularly hateful and frightening point may have been made.
The explosion, which injured at least five people, follows the deadly Centennial Park bombing during last summer's Olympics and the January bombings at a suburban family-planning clinic. As federal investigators began looking at evidence from the latest explosion, similarities with the earlier incidents were striking....