Actually, you CAN tax illegal things. That's how they got Al Capone: tax evasion.
This is something they've been kicking around for minefield detection for a while. Seed a purported minefield with grass that behaves differently in the presence of explosive, then wait and you can see where to avoid and send the demolition crews.
They don't need to make it, it's Ben Dune (been done)
Adding features does not necessarily increase functionality -- it just makes the manuals thicker.