This is clearly illegal and an unsafe practice and has resulted in the occasional accident and regrettably some deaths. Delete it if it comes in your inbox, blah blah blah, etc. Snyder its fun. After all, we need a concealed cellulite law way more than a concealed weapons law. But the way it stands, I doubt anybody will be able to take the removeable magnetic storeage crown away from Iomega's zip anytime soon.
Floppy disks are already incredibly unreliable.
When you start cramming even more data on them, I can't imagine that aspect getting anything except worse. And to date I don't think I've ever had a problem reading or writing to one of my zip disks.