Reasoned response

[qts]

I've had a little time to  read the other responses and to think.

Remember Lockerbie? After the bombing of Tripoli, Libya's terrorism virtually stopped - now it uses proxies. I suggest that a significant military response, both against the actual terrorists AND against the sponsoring government would bring about the required result.

That said, I think that Libya is a prime suspect.

[Sandman]

Absolutely. Whatever country harbored these people is going to have hell to pay.

[indian]

Any and all terrorist need to be hit and hit hard. All countries that give them safe refuge should be hit very hard also.