If you answered anything less than 100%, you must be new here.
The annual Black Hat conference of uber hackers is going on right now. A few years ago they featured a hotel lock hack that actually got exploited in the real world. This year there was a presentation [PDF] all about why TSA sucks. It goes on for 72 slides. At the beginning there's a nice slide comparing the agency's airport security budget vs. "one guy, no budget, and a laptop." So that's depressing.
It turns out - among other things - that the agency is using multiple different machines that have hard-coded default passwords, which are functional back doors that anyone can use to enter. And once a hacker is inside, they can hop around inside TSA's network. Said the researcher: "The most important thing for people to take away is if the device is connected to the Internet and to another network, which is extremely common, you basically have a bridge."
Why can't they do literally anything right?