bell-lapadula model question. assume we have two levels for security, topsecret and secret, with topsecret being the higher of the two. assume a document thegreatescape is classified as topsecret. assume mr. brickhill’s security level is topsecret and he has security clearance for topsecret documents but mr. bigx has security level is secret with security clearance for secret documents. mr. brickhill would like mr. bigx to read thegreatescape. per our discussion in class, what must occur to accomplish this?