In addition to locking the Tabernacle, the Knights of Columbus have Volunteered to watch all communicants that receive the host to make sure that none of them make off with it.
Perhaps other parishes might start something similar.
God has an interesting ability to make something good out of an otherwise bad thing or situation. Perhaps the ease with which people can do these things while receiving Communion in the hand will lead to the abolition of the practice. And, even though it’s a lot harder to preserve the Eucharist intact once It’s in a person’s mouth, it still might not be a bad idea to get the K of C (or a similar group) lined-up to do what you suggest in every parish! ;-)
I hope they have their swords at the ready...yes, I know they are probably not in their regalia, but I like the idea of them being dressed in their KoC uniforms while on duty.