Terrorism is probably not nearly as important in this as the march of legal liability. If chemistry sets ever included all the stuff required for making a serious explosive, it has been decades since then.
If you started a chain of chemical hackerspaces for adults (the neat idea you describe) and did not take strict measures to control your liability then sooner or later you could be sure of a suit from someone who injured himself.
And the days have long passed when you could sell toys like "bag o'glass" to kids without facing epic liability.
If you started a chain of chemical hackerspaces for adults (the neat idea you describe) and did not take strict measures to control your liability then sooner or later you could be sure of a suit from someone who injured himself.
And the days have long passed when you could sell toys like "bag o'glass" to kids without facing epic liability.