Uh, yes? There are dozens of specific US laws that govern this and tons of existing case law that committing a serious crime overseas is punishable in the US regardless of its legality elsewhere.
The Travel Act for example makes it illegal to fly to another country to engage in sexual acts with a minor, even if it is legal in that country. Do you think that is some sort of government overreach?
The Travel Act for example makes it illegal to fly to another country to engage in sexual acts with a minor, even if it is legal in that country. Do you think that is some sort of government overreach?