Anthrax is a lot easier.
“Anthrax is a lot easier” Yes it is, but even the U.S. Government has not been able to keep that out of malicious hands, much less find the ‘malicious’ hands that uses it.
Fortunately for us most psychopaths don’t have the pacents or money to develop and uses weapons like Anthrax when a simple gun, knife, or bomb will do the same trick far more efficiently.
Even still we know from experence that Federal law has not prevented attacks, nor can it prevent such an attack. State law might enjoy small amount of greater success given greater numbers and local knowledge but even that won’t stop an intelligent madman.
If your smart enough & inclined to develop an Anthrax weapon your smart enough to do it without being detected before its too late.