Failure to Report Rape and Blackmail in Texas

in the situation now where she is presumeably single, i have no problem with her having custody. What scares me is eventually she will end with someone who may/ maynot want to harm my son. And, with her failing to report the other 2........i have severe concerns. I have no faith in her reporting or doing anything about it IF anything like this happens to him. Yes, still tempted to fight for custody. will be talking to 2 lawyers today, hiring one tomorrow and probly go by what they suggest is best.