Are you sure? Unless they turn into citizens (say, via green card) why would they have to report? I would think not even green card holders would have to (although looks like they do, according to http://www.taxesforexpats.com/expat-tax-advice/green-card.ht...). Do you have a reference for your claim?
No reference, but I'm a H-1B holder and I file FBARs. I am part of a German Expat forum and the opinion there is pretty cut and dry that H-1Bs have to file. Every year that forum has a big thread to make sure everybody is aware of it. Having my savings confiscated for screwing up FBAR reporting is literally my number one fear I have about living in the USA.
