I wonder if they could do some sort of tamper-proof package with some sort of perforated cardboard with a pull tab? Once opened the perforation would have little color indicator to show the package had been opened.
(Think a cardboard version of Oreo packaging.)
That or something like a red line in the tape that shows as broken when the tape is cut? There's got to be an easy tamper solution out there. Just not sure how cost effective it is or if they would care.
I remember when Walmart first came out with the self-checkout machines. A news anchor was interviewing some WM bigshot and asked if they were worried about increased shoplifting. His reply was that they forecasted an increase in theft, but that the savings from fewer checkout people would still be a huge net gain. Profit always trumps integrity I guess. Hasbro gets paid by retailers, not consumers, so they might not really care.