Am I being thick, does he mean by ground zero ... there is always a second chance or no more second chances?
I wondered the same thing at first,
@DynamoHum, but I think he means no second chances... ever. If a site is ground zero in a successful attack, there's nothing left afterwards, everything is destroyed. I think that's the context in which he means this, though I'm guessing.
If he means he'd give her another chance, then he's got his head in the sand and is really stupid.