Don't you think it also a question of good sense !!!!
If you find a school who advertise its training 0 to CPL in 250 hours for $35.000 when everybody is more or less in the $50.000, there is may be matter to be carefull !!!! or the ones who guaranty a job in the airline after the training when there is hardly any jobs at that moment !!!!
There is no miracle in aviation ....
It is certainly difficult for a foreigner to come and check a school in the US before signing but there is no excuse for the US students ....