You know, there is one vital little piece of information that most people are missing about this debate.
Transgendered people generally act in a manner consistent with being a member of the opposite gender, meaning that males act and dress like females, and females act and dress like males. That also probably goes for their sexuality, meaning that if they dress and act like females, they probably aren't interested in female sex, meaning they wouldn't be interested in little girls, but rather grown men.
And no, that idiot at the Target store in San Francisco wasn't a transgendered person using a bathroom, it was some pervert peeking in on women who are changing. If he was transgendered, he would have dressed different.
I also find it interesting that people will yell loudly about males going into female bathrooms, but very little has been said about women using male bathrooms. All the talk has been about how men are going to prey on little girls.
But, like I said, the majority of transgendered males aren't interested in sex with little girls, they are more interested in grown males.