You say that Flight Duty Time has been altered; I assume duty time is still logged. However, if you want to alert someone to the problem; it has been the case where XAA's have banned some operators from their airspace on safety grounds. This duty you say enters USA airspace. In the light of recent various incidents the FAA have been a little more alert to operating practices than they were previously. Might you find a listening ear, anonymously, over there?