adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-NATIONAL_WORLD","nativepaywallcategory" : "NATIVE_PREM-NATIONAL_WORLD"};DALLAS (AP) — The arrests this month of two men on charges of groping young girls on planes has raised questions about the safety of minors who fly alone. Experts say that before putting children on a plane alone, parents should teach them to immediately get help if another person makes them uncomfortable.