[Sopater]

There is no need to amend the constitution to cover things which are already covered by it. Devices or substances that threaten the citizenry of the US, are already covered in the "Enemies, foreign and domestic" clause.

Please, enlighten me to particulars of the "Enemies, foreign and domestic" clause of the US Constitution that gives the federal gov't this immense enumerated power. This is new to me.

[DiogenesLamp]

Please, enlighten me to particulars of the "Enemies, foreign and domestic" clause of the US Constitution that gives the federal gov't this immense enumerated power. This is new to me.

Well it's quite simple really. If someone attempts to bring in substances or devices which kill Americans, they are enemies (foreign) and therefore they need to be wiped out. If Americans collaborate with these foreign importers of death, then they too are enemies, (Domestic) and need to be wiped out.