They need a law for registering fertilizer bombs and 5 ton trucks that will be used to kill people too.
Hell, you can hardly buy good fertilizer anymore. The traditional 34-0-0 is hard to get because of fear of people “applying it incorrectly”. When a criminal commits a crime, stupid politicians try to make sure everyone who had nothing to do with it pays. Some fool blows up something with fertilizer, everyone else has to starve....