we hired you as professionals. we trust you with our children. so if you think the book is okay, then let's go with it. and whatever happens, we will fight it together. >> reporter: the school district's superintendent apologized for any hurt and confusion this has caused adding there are not two sides of the holocaust and that the district is working to add clarity to the expectations for teachers. but in south lake, finding clarity has been impossible since the controversial texas law went into effect. several teachers who have spoken to cnn say a group of conservative and highly organized parents are the driving force of this controversy. pushing school administrators to limit discussions on racial and social justice issues. >> it's very sad, the situation that we're in right now. >> reporter: russell maryland is a longtime south lake resident. his three children have gone to schools here. the former dallas cowboys