Should the world's most widely used weedkiller have a warning label for possibly causing cancer?

Thousands of customers are suing Bayer for its
weedkiller, Roundup, allegedly causing cancer.

Bayer is battling thousands of lawsuits from customers alleging the world’s most widely used weedkiller, Roundup, is causing cancer, report Patrick Thomas and Lydia Wheeler for The Wall Street Journal.

The U.S. Supreme Court must decide whether Bayer’s failure to provide a warning label on their product is illegal.

The federal government and Environmental Protection Agency determined Roundup is safe for use, and the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) “prohibits states from imposing different or additional warnings from those required under the federal law,” the reporters explain.

The World Health Organization’s International Agency for Research on Cancer classified glyphosate, the main ingredient in Roundup, as “probably carcinogenic to humans” in 2015, though the EPA and federal government claim it isn’t.

The plaintiffs argue that Bayer should take extra steps to warn consumers of the risks the herbicide might pose, the reporters add.

While states can pull products from the market, Justice Neil Gorsuch questioned why they can’t hold companies liable for failure to warn customers, the Journal reports.

Bayer continues to argue that federal law is created to provide uniformity in the labeling of herbicides. The reporters add that Justice Brett Kavanaugh asked, “If the label is illegal in one state and legal in another state, that’s uniformity?”