Potentially Dangerous document attached to an email? Gotta open it anyway?

I was at the Online News Association conference and learned about this tool that’s designed to scrub PDF and .doc attachments that are sent from unknown sources. If you’re a journalist, this might be an important scoop—perhaps it’s a whistleblower! Or, it could be a dangerous file that feeds on your curiosity and installs malware on your computer. Can you think of any other applications for this?