Ummmm, I never raised the issue of espionage. I'm not really worried about that as a problem. It was mentioned that the NFL and auto racing are the only other sports with radios and I was merely pointing out that the NFL is limited is its use such that the players still have to think for themselves as opposed to a chess match between the DS.
With regards to the safety radios, many of those in favor of the radios (i.e. riders and DS), have cried that safety is the reason they need radios. As I understand it and IMO, the reason for the radio ban is so that the riders actually have to think and not rely upon the DS for all strategy, such as, without limitation, attack now, or the break is x mintues again and travelling at y kph, therefore pick up the pace to z kph and you'll catch them 2k before the finish line so we can have our sprint. Allowing the radios to warn of road hazzards only is a compromise that would (arguably) make both parties happy. IMO this is BS and there is not evidence support the safety claim, but then again, that's just my opinion.