After consumer complaints of overheating batteries, the company did not immediately report the defect with its Ionic smartwatches, according to a settlement with the U.S. government.

The cases have spurred new pet food safety rules and poultry surveillance efforts.

Consumer and food safety groups have long urged the agency to revoke the use of this dye and others. The F.D.A. says there still is no evidence it is a human carcinogenic.

While some agree with Robert F. Kennedy Jr. that the agency needs reform, their ideas for fixing it are very different from his.

Federal health agencies closed their investigations into the bacterial outbreak that sickened 104 people and was linked to onions on the fast-food chain’s signature Quarter Pounders.

© Charles Rex Arbogast/Associated Press