code: public Result<List<CredDAO.Data>> readNS(AuthzTrans trans, final String ns) {
  		
  		return dao().readNS(trans, ns);
  	}
docs: Pass through Cred Lookup
  
  Unlike Role and Perm, we don't need or want to cache these elements... Only used for NS Delete.
  
  @param trans
  @param ns
  @return