i've been shown that the americans can come in here and do this with impunity. and i think we have to be -- i think we have to recognize that they see a cost in that and a price that has been paid. >> yesterday five united states senators sent a letter to secretaries gates and hillary clinton urging for a reevaluation of u.s. military aid to pakistan. meanwhile, as unauthorized details about the raid continue to leak, mike mull p says he's concerned the information could affect future military operations. >> we are close to jeopardizing this precious capability that we have and we complaint afford to do that. this fight isn't over. from my perspective, it is time to stop talking and we have