but wright also , in one of his rebuttals to his critics , points not only to the writing , but to the entire harappan civilization , including its cities ( which , he claims , included what we today refer to as bunkers , places where husbands and wives could ride out the storm , protected from , and undisturbed by , other elements , such as hunters ) , and to its many artifacts , often detailed and well preserved , as supporting his theories and conclusions .