The US has replaced backpack nukes with precision guided muntions. The cruise missile did more to eliminate the need for a backpack nuke than anything else.
What is the purpose of a backpack nuke? to blow something up that you can't get real close too. With precision munitions, there isn't much that we can't get close to (or hit out right)
plus a backpack nuke is going to be very limited in it's yield - I've heard they are in the 1-2 kt range, but am not an expert on this - I'm sure someone has better info on this.
You seem to like to take the lowest, most ineficient weapons and claim they are uber weapons.
A backpack nuke IS a terrorist weapon in today's climate, but they won't leave cities uninhabitable, they won't kill millions of people.
Look at Chernobyl, the world's worst nuclear accident (more contamination that Hirosima and Nagasaki combined) They did a hell of a job cleaning up afterwards (yes, they are STILL doing clean up), and the area is not a total write off.
Biological weapons are a greater concern, because unlike an explosive that once it is used, you are faced with clean up, they can be self-sustaining. Though most weapons are designed not to be.
You can have your little backpack nukes, but any country with cruise missiles will wipe you out long before you can use them.
It's that whole long range shooting thing. you'll be dead before you get close enough to use your weapons.
:devil: