So you want them only to read what has been "approved"? At that rate they should stop reading Noam Chomsky because he may have writings not favorable to the US

So you want them only to read what has been "approved"? At that rate they should stop reading Noam Chomsky because he may have writings not favorable to the US Military. The idea of education (even at a US Military Academy) is let students read a diverse group of authors in order to make well informed moral decisions once they get into the field. Saying a book has "dangerous" ideas is akin to a people wanting to burn books because they object to what is being written.