The FedEx fire suppression system is a great start. True, it won't apply to my airline, as we have pallets on the main deck. But the suppressive "blanket" over the pallet is a great idea. The only downside I see is that the "blanket" may delay discovering the fire.
I hate to bust your bubble but FedEx carries a lot more than cans. Enter any international destination FedEx bird in addition to domestic aircraft and you will see a lot of pallet freight, including a lot of DG on pallets.
