Hundreds of employees of US health agencies accuse Robert Kennedy Jr. of spreading misinformation, endangering public health.

In an open letter, hundreds of current and former employees of US health agencies accuse Health Secretary Robert Kennedy Jr. of spreading false information about vaccines, fueling distrust of public institutions. The letter comes after an armed attack on CDC headquarters that left a police officer dead, underscoring the consequences of anti-vaccine rhetoric. Officials call for an end to his actions, warning that they jeopardize the nation's health. A petition to recall him has gathered more than 12,600 signatures.