> So, if we extrapolate towards the future, what you're saying is that the only way to prevent terrorist attacks that kill millions in a single blow is to abandon any and all privacy on a global scale?
No, but what I am saying is that there is very little some suitable middle ground between letting extremists do whatever the hell they want and a total police state.
Notice I've not really been arguing with people who say that more controls are needed on government surveillance, as I agree completely.
I am arguing with people who say things implying that terrorists are dumb or that there is no amount of fatalities that would make even a little bit of law enforcement capability reasonable.
There's a lot of different arguments going on around this, but you'll note that there was not much public outcry about the idea of the police being able to wiretap cell phones, subpoena emails, etc. pursuant to an investigation.
So the issue IMHO is not with government surveillance per se, it with the type of surveillance now available to the NSA, and the oversight that is not currently going along with it.
Back to the point though, the increasingly deadly probability of a single event makes it correspondingly more of a good resource and policy allocation for government to take pains to avoid these events. That doesn't mean unlimited police powers by any stretch; but it does mean we expect people to be detecting and breaking up terror cells before they become deadly.
> Also, al qaeda didn't have any success attacking on US soil prior to 9/11
Don't be silly, the 9/11 attacks were at least the second attack by Al Qaeda on the WTC site.
And either way, what's that matter for this? The U.S. Navy sucked at combat in 1941 and 1942 but by 1944 outclassed the Japanese Navy and aviators even on a 1:1 basis.
The reason AQ sucked at terrorism was because they were crap in general, but they learned over time, gained operational experience, developed training methods and command & control, and built what we in the military call 'corporate knowledge'. All of which leads to a much more effective terrorism 'machine'.