Even this doesn’t tell the whole story. Of those incidents, roughly half have no effect. This means terrorists launch an attack, but no lives are lost, nor is any property damaged.
But “let’s not downplay this,” said a senior defense official. “Some of the attacks are horrendous, like the attack on the mosque in Hillah that killed more than 100 Iraqis.” (emphasis mine)
I'm confused by an attack that does no property damage and kills no one. What exactly happens during one of these?