https://www.reuters.com/business/healthcare-pharmaceuticals/...

    LONDON, June 29 (Reuters) - One of the world's most 
    common artificial sweeteners is set to be declared a 
    possible carcinogen next month by a leading global health 
    body, according to two sources with knowledge of the 
    process, pitting it against the food industry and 
    regulators.

[…13 paragraphs later…]

    The IARC's decisions have also faced criticism for 
    sparking needless alarm over hard to avoid substances or 
    situations. It has four different levels of 
    classification - carcinogenic, probably carcinogenic, 
    possibly carcinogenic and not classifiable. The levels 
    are based on the strength of the evidence, rather than 
    how dangerous a substance is.

Using a term with a technical definition that isn't remotely close to the plain english meaning of the composing words, in a headline—and not explaining the gag in the first paragraph—is terrible reporting