Countless "objective" journalists advocate for mammograms to stop breast cancer.
Katie Couric advocates for colonoscopies to stop colon cancer.
Air pollution from burning fossil fuels like coal and oil definitively & scientifically causes lung cancer. Where are the journalists advocating for Environmental Protection Agency limits on air pollution?
Why are the first two OK, but not the third? Or is advocacy for stopping cancer only OK if there's no big money starting the cancer?
UPDATE: A Facebook commenter points out that media's unwritten rules sometimes allow an advocacy exception when the journalist is personally affected, i.e. Megyn Kelly suddenly caring about maternity leave.