He also said manufacturers should consider "tamper-proof packaging".
Every bottle of the capsules was pulled from the shelves and the firm quickly came up with tamper-proof packaging.
The poisonings, an unsolved crime and not previously connected to Kaczynski, killed seven people, caused a national panic, and brought tamper-proof packaging to over-the-counter drugs.
(But not in homes with pets, he added, since they might eat the poison or the poisoned rodents. And in homes with children, he said, poisons with tamper-proof packaging should be used).
The plan succeeded, and though many thought consumers would never trust Tylenol again, its manufacturer, the Johnson & Johnson subsidiary McNeil Consumer Products, reintroduced the brand two months later in new, ostensibly tamper-proof packaging.
Options on how businesses could deploy blockchain technology include creating trackable, tamper-proof packaging, devising serial numbers or sensor stamps, and closely monitoring the transportation of materials or products from one stage to another.
The policy would have forced restaurants to only serve olive oil in tamper-proof packaging, labelled to EU standards, as of next year.
It was one of the first major product recalls in the U.S. J&J also communicated frequently with affected stakeholders and rolled out new tamper-proof packaging (a market first) within six weeks.
UPDATE: The House Judiciary Committee voted 7-3 in favor of House Bill 1250 after it was amended to allow, but not compel, state regulators to require tamper-proof packaging.
