FairWarning: Each year, more than 67,000 U.S. workers and do-it-yourselfers suffer blade contact injuries, according to government estimates, including more than 33,000 injuries treated in emergency rooms and 4,000 amputations.

FairWarning: Even as more than 800,000 novelty helmets are sold in the U.S. every year, and as motorcycle crash deaths mount, federal regulators have never acted with urgency to crack down on novelty helmets.

FairWarning: Public health historians Gerald Markowitz and David Rosner fault paint makers and marketers, along with regulators, landlords and others, for allowing lead poisoning to persist.

FairWarning: Chemicals used to treat drinking water for millions of Americans may raise the risk of cancer and lead to other unintended health hazards.

FairWarning: A new campaign by the tanning industry to promote the safety of sunbed use has come under fierce attack from the American Academy of Dermatology.

FairWarning: The $4.9 billion tanning salon industry repeatedly has faced charges of misrepresenting health risks. So how is the industry responding? By going on the offensive with an audacious campaign to blunt skin cancer fears.

FairWarning: No criminal charges will be filed against billboard giant Lamar Advertising Co. despite evidence that company workers in Tallahassee over at least seven years secretly chopped down or poisoned trees to provide clearer views of its roadside signs.

FairWarning: The LipoTron, heavily promoted in Florida for fat reduction, has never been cleared or approved by the U.S. Food and Drug Administration, which would make it illegal under federal law to sell or promote it for weight loss.

FairWarning: Fatalities from motorcycle crashes have more than doubled since the mid-1990s. Yet if the biker groups’ lobbyists and congressional allies have their way, the federal government will be thwarted in its efforts to reduce the body count.

FairWarning: As long as there have been billboards, trees have been getting in the way. And billboard companies have been removing them — sometimes legally, sometimes not.