Earlier quoted context omitted.
I'm not willing to give the government the benefit of the doubt anymore. I can't recall any instance historically where they have turned out to have been right based on some secret information, even though they often intimate that they have some.
It happens quite a lot. The catch is that the whole thing end-to-end is secret, with the result being that you don't hear about it at all. All we really hear about on the outside is the screwups. The successes are silent.
That's not a catch, that's an unfalsifiable statement. Here's another way to end your comment for which there is a lot more evidence:
All we really hear about on the outside are the big screwups. All the normal screwups and marginal successes are silent.
Here's a great article on just how crappy the record of these secret organizations is:
http://www.bbc.co.uk/blogs/adamcurtis/entries/3662a707-0af9-...