Tweak says, "2. 4. 3."
https://www.newscientist.com/article/2119596-us-scientists-can-look-to-canada-for-ways-to-fight-a-crackdown/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=news&campaign_id=RSS%7CNSNS-news
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