I'm no attorney but I would think they'll have a hard time making those charges stick. They're trying to say that state law supercedes the law of a foreign country. To me that would be like trying to charge someone under Arkansas law with contributing to the delinquency of a minor for buying an 18 year old a drink in Cancun where they are of legal drinking age.
Don't know the law, but do know that if you travel to a foreign country to imbibe in fruit that has not ripened is in fact an offense punishable by the U.S. Sorry hiphog, looks like we are going to have to cancel that trip to Bangkok, even though I was looking forward to hooking you up with some beautiful Kathoeys.
The US can prosecute sex tourism under a law called the Protect Act. This law makes sex tourism illegal and allows the US government to prosecute such crimes no matter where they took place. The FBI is responsible for investigating any claims of sex tourism and their global network is often successful in building a case against suspected sex tourists.
Sex crimes involving minors are a serious matter. The United States treats these cases very seriously no matter where the crimes occur. All citizens should know that in certain cases our country's legal jurisdiction has no borders. Sex tourism is one such case.
Opinion: They are going to the joint for obvious violations of predation on minors.