I think that's the unstated part: Encryption doesn't handicap law enforcement if they weren't monitoring the communication anyway. [Edit: Though in fairness,

I think that's the unstated part: Encryption doesn't handicap law enforcement if they weren't monitoring the communication anyway. [Edit: Though in fairness, if they weren't monitoring everything but then decided they had grounds - or even (gasp) a warrant - to monitor a specific set of communications, then encryption handicaps law enforcement.]