[lostcolony]

We know at least two made it through. Underwear bomber, shoe bomber.

We also know pre-9/11 how common it was (non-existent).

We also know that they consistently fail audits. Though they've gotten better! Most recently they only failed ~75% of the time at detecting things auditors were trying to smuggle in, instead of the prior 95%!

So, yeah, by itself it doesn't. But we have enough data to make a pretty solid eval.

[mikeyouse]

Both the underwear bomber and shoe bomber boarded flights overseas (Amsterdam and Paris respectively) -- so no TSA involvement.

[goobynight]

The TSA has operated overseas before, but probably not in these countries.

If they see a country isn't up to their standard, I think they either show up to implement it for flights headed to the US or at least consult with the nation.

[acct1771]

Underwear bomber was Saudi intelligence/CIA, for the reader's info.