Back on the topic. . . I still don't see how this warrants any kind of "immediate investigation" or "immediate response" from the government. Any American or Canadian who isn't already well aware that their countries did and do treat Indians as less than human and subject them to a broad range of official and unofficial discrimination is either terminally clueless or in such deep denial that this revelation will do nothing to change their minds.
It requires immediate investigation because there are a whole bunch of lawyers on contingencies waiting to sue the current government for actions that took place while most of them were in diapers or not even born.