Anywhere where the general public can see these numbers, because something as big as this wouldn't go unreported by the news. They're always looking for click bait new stories and "Is your child's teacher fit to be in the classroom?" is about as juicy a click bait news story as it gets.
That aside; sorry, but if everyone besides Blacks and Hispanics are passing the test, the problem isn't with the test. We don't need to lower our standards as a society just because a minority group or two can't keep up with the standards. Truth be told, we will always need people working in lower positions that don't require high standards, maybe those jobs are more suited to the groups that can't pass the test.