It's an impressive technical achievement, but the huge cost/effort imbalance is important and speaks to the sustainability and eventual outcome. In Afghan, one illiterate bloke in sandals could tie-up huge amounts of resources and paralyse entire columns of vehicles with the threat of an IED that might not even be real or effective. We saw heroic efforts from specialist teams helicoptered in to spend half a day to clear a few yards of road, it became obvious to anyone who saw this that it was not sustainable, let alone win-able. A solution is needed to large numbers of cheap, low tech drones, and I don't think it's a Typhoon firing an ASRAAM at every one.