Eugene Kittridge : What, can we do Barnes... put a guy at the airport? How many identities do you think Hunt has? How many times has he slipped past customs and in how many countries? These guys are trained to be ghosts... we taught them to do it for Christ's sake.
Frank Barnes : Well what do you suggest?
Eugene Kittridge : Let's not waste time chasing after him, just make him come to us. Everybody has pressure points, Barnes. You find something that's personally important to him and you... squeeze.
Ethan Hunt : [Ethan narrates someone getting into the vault] The only person allowed inside has to pass through a series of security checks. First is voiceprint identification
CIA Analyst William Donloe : William Donloe.
Ethan Hunt : Then, he has to put in a 6 digit code.
Ethan Hunt : That only gets him into the outer room. Next, he is positively identified by retinal scan.
Ethan Hunt : Finally, the security measures are only deactivated after insertion of a double electronic keycard... which we won't have.
Ethan Hunt : Once inside the vault, there are 3 security systems in operation whenever the technician is out of the room. First is sound sensitive; anything above a whisper will set it off. The second is temperature-sensitive. Even the body heat of an unauthorized person inside the vault can trigger the alarm if the temperature rises just a single degree. And that temperature is controlled by an air conditioning vent 30 feet above the vault floor. That vent is guarded by a laser net.
Ethan Hunt : The third one is on the floor, and it's pressure sensitive. Just the slightest increase in weight will set it off. And any of these systems, if set off, will trigger an automatic lockdown. Now believe me when I tell you, gentlemen, that all 3 systems, are state of the art.