It sounds obvious to us, but maybe you overestimating the intelligence of the average suicidal terrorist. For the high level people you are probably right. I'm

It sounds obvious to us, but maybe you overestimating the intelligence of the average suicidal terrorist. For the high level people you are probably right. I'm sure the kingpins either never use phones and internet, or RSA encrypt everything. However, I would think the low level terrorist grunts are occasionally going to make mistakes and talk about things they shouldn't on the phone with family and friends.