united states justice department has already filed charges against him, the next step would be to try to revoke his passport, so if he tried to pass from one country to another, he could be stopped, perhaps detained, but that's all an open question because nobody knows where the suspect is, john. >> by revoking his passport, means he is in hong kong illegally, in theory, he could be picked up. he is not the only one talking to south china morning post. later, we will hear from the director of the nsa at a senate appropriations hearing. what can we expect him to say about nsa leaks? >> reporter: this is a spending hearing. it is possible there will be a variety of topics discussed on capitol hill, but there's been a lot of heat from members of congress about the electronic tracking program and disclosing more information so that the public can get a better sense of what it is, what it does, how it