People doing high-profile illegal activities will always be able to use simple open-source software, that cannot be stopped. Terrorism is not a valid reason -

People doing high-profile illegal activities will always be able to use simple open-source software, that cannot be stopped. Terrorism is not a valid reason - well, perhaps unless you're going to take the jump to including a Chinese national that says 'Tiananmen Square' to their wife in a random call, as some 'Law Enforcement' will.