Concerned teacher, you are doing the right thing. If your school and the police can right away communicate with the Thai and Filipino embassies, so much the better. It is best to warn people before everything is too late. As to other males who "may" fit the description, what is wrong if you have nothing to hide? The burden of proof is not yours, but those making the accusations. Unless the passport number is bogus, chances of mistaken identity are few and far between. We are not talking about image here; we are talking about the safety of many young girls who are potential sexual abuse victims.