I assume that when a team is caught stealing signs by electronic means, that team was not first to do it, but felt it had to equalize the competition. There are many ways of adding technical eyes to base runner eyes, and I'm sure each team has at least entertained the possibility, or experimented with one or more of these techniques. The real question is: How do you stop ALL TEAMS from doing so? That would be the fair thing, but it may not be possible, so that certain teams will be picked off now and then to serve as an object lesson. God, if a viewer can see the damn signs, why can't teams learn to relay those same signs??