(Scene starts with Fisher outside CIA HQ, while it rained and he was about to breach in) Irvin Lambert: (Radio) Time to get to work, Fisher. Let me reiterate: We cannot afford any casualties. The NSA doesn't operate in the U.S. We don't spy on other agencies. Sam Fisher: I'm not here. Lambert: That's right. You've lost existence privileges until this mission's over. We've synced a timer on your OpSat to a pause in the ventilation system fans. You'll have a limited window of opportunity to use it for insertion. (Sam sneaked towards the building with two guards dealing with a van driver.) Sam: No.