Two passengers on the missing Malaysian Airlines flight were traveling on stolen passports . Authorities say there 's no indication of terrorism links . Comment: Human traffickers also may travel on passports to hide their identities , they say .
Two passengers on the missing Malaysian Airlines flight were traveling on stolen passports . Authorities say there 's no indication of terrorism links . Travelers smuggling drugs , other contraband might use stolen passports , experts say . Human traffickers also may travel on passports to hide their identities , they say .