From the file's introduction
The world is an unsafe place. We all know it. With the rise of modern terrorist tactics, it seems like no place is safe—anything can happen to anyone, anywhere, at any time. We all feel more secure and comfortable in our own homes than elsewhere, but in reality, home offers little more protection than the office, the mall, or any other public place. In fact, for those involved in high-security work, home is sometimes the weakest link in the chain of personal protection.
In The Petersen Counterstrike, a terrorist organization strikes at Department-7 by targeting the home of one of its employees.