That's like saying that if there are any reports of measles, the entire vaccination regime is a failure. I agree that we need to know more about the efforts to

That's like saying that if there are any reports of measles, the entire vaccination regime is a failure. I agree that we need to know more about the efforts to understand if they're working. I disagree that the small number of terrorist attacks is evidence that the efforts we're using to combat the attacks aren't necessary.