Let&#x27;s say these terrorists were naïve or technical luddites.  Why would future perpetrators also be presumed to remain luddites?<p>Second, what would you propose _if_ they are found to have used encryption to avoid detection, would that make a difference?  Or do we come up with a better reason to exculpate encryption?<p>If encryption is not a bogey-thing, then it&#x27;s irrelevant whether it was used or not.  We don&#x27;t need confirmation it was not used.