回复：请问皮匠，863211等大侠, Cruise question

I want to take my parents-in-law to Mexico cruise in Nov.. They have B1/B2 multiple entry visa which will expire before the sailing date. This is their 2nd entry, the I-94 won't expire until next year. Is there any problem for them to re-enter U.S. after the trip?
-I do not see it will be a problem.